1296473850 has 360 divisors, whose sum is σ = 4310349120. Its totient is φ = 287945280.

The previous prime is 1296473807. The next prime is 1296473851. The reversal of 1296473850 is 583746921.

1296473850 is a `hidden beast` number, since 12 + 96 + 473 + 85 + 0 = 666.

1296473850 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

1296473850 is strictly pandigital in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1296473796 and 1296473805.

It is not an unprimeable number, because it can be changed into a prime (1296473851) by changing a digit.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 9327081 + ... + 9327219.

It is an arithmetic number, because the mean of its divisors is an integer number (11973192).

It is a 1-persistent number, because it is pandigital, but 2⋅1296473850 = 2592947700 is not.

It is a vampire number, since it can be written as 29610 ⋅ 43785 (with its own digits).

Almost surely, 2^1296473850 is an apocalyptic number.

1296473850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1296473850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2155174560).

1296473850 is an abundant number, since it is smaller than the sum of its proper divisors (3013875270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1296473850 is a wasteful number, since it uses less digits than its factorization.

1296473850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1296473850 is about 36006.5806485426. The cubic root of 1296473850 is about 1090.4052164515.

The spelling of 1296473850 in words is "one billion, two hundred ninety-six million, four hundred seventy-three thousand, eight hundred fifty".