1246515480 has 640 divisors, whose sum is σ = 5250199680. Its totient is φ = 258785280.

The previous prime is 1246515451. The next prime is 1246515481. The reversal of 1246515480 is 845156421.

It is a happy number.

1246515480 is a `hidden beast` number, since 124 + 6 + 51 + 5 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1246515481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 20434650 + ... + 20434710.

It is an arithmetic number, because the mean of its divisors is an integer number (8203437).

Almost surely, 2^1246515480 is an apocalyptic number.

1246515480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1246515480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2625099840).

1246515480 is an abundant number, since it is smaller than the sum of its proper divisors (4003684200).

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

1246515480 is a wasteful number, since it uses less digits than its factorization.

1246515480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 1246515480 is about 35306.0261145318. The cubic root of 1246515480 is about 1076.2154573769.

The spelling of 1246515480 in words is "one billion, two hundred forty-six million, five hundred fifteen thousand, four hundred eighty".