1373396850 has 384 divisors, whose sum is σ = 4679700480. Its totient is φ = 289059840.

The previous prime is 1373396789. The next prime is 1373396851. The reversal of 1373396850 is 586933731.

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

It is a junction number, because it is equal to n+sod(n) for n = 1373396796 and 1373396805.

It is not an unprimeable number, because it can be changed into a prime (1373396851) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 13333899 + ... + 13334001.

It is an arithmetic number, because the mean of its divisors is an integer number (12186720).

Almost surely, 2^1373396850 is an apocalyptic number.

1373396850 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 1373396850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2339850240).

1373396850 is an abundant number, since it is smaller than the sum of its proper divisors (3306303630).

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

1373396850 is a wasteful number, since it uses less digits than its factorization.

1373396850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 1373396850 is about 37059.3692606876. The cubic root of 1373396850 is about 1111.5577107106.

The spelling of 1373396850 in words is "one billion, three hundred seventy-three million, three hundred ninety-six thousand, eight hundred fifty".