15996312 has 64 divisors (see below), whose sum is σ = 44928000. Its totient is φ = 5272992.

The previous prime is 15996311. The next prime is 15996329. The reversal of 15996312 is 21369951.

15996312 is a `hidden beast` number, since 1 + 599 + 63 + 1 + 2 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 (15996311) 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 15 ways as a sum of consecutive naturals, for example, 21889 + ... + 22607.

It is an arithmetic number, because the mean of its divisors is an integer number (702000).

Almost surely, 2^15996312 is an apocalyptic number.

15996312 is a gapful number since it is divisible by the number (12) 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 15996312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22464000).

15996312 is an abundant number, since it is smaller than the sum of its proper divisors (28931688).

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

15996312 is a wasteful number, since it uses less digits than its factorization.

15996312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 827 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 15996312 is about 3999.5389734318. The cubic root of 15996312 is about 251.9648477044.

The spelling of 15996312 in words is "fifteen million, nine hundred ninety-six thousand, three hundred twelve".