15996456 has 96 divisors (see below), whose sum is σ = 52453440. Its totient is φ = 4299264.

The previous prime is 15996433. The next prime is 15996467. The reversal of 15996456 is 65469951.

It is a happy number.

15996456 is a `hidden beast` number, since 1 + 599 + 6 + 4 + 56 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7635 + ... + 9501.

It is an arithmetic number, because the mean of its divisors is an integer number (546390).

Almost surely, 2^15996456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15996456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26226720).

15996456 is an abundant number, since it is smaller than the sum of its proper divisors (36456984).

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

15996456 is a wasteful number, since it uses less digits than its factorization.

15996456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903 (or 1896 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 15996456 is about 3999.5569754662. The cubic root of 15996456 is about 251.9656037710.

The spelling of 15996456 in words is "fifteen million, nine hundred ninety-six thousand, four hundred fifty-six".