12015996 has 24 divisors (see below), whose sum is σ = 28245840. Its totient is φ = 3975552.

The previous prime is 12015977. The next prime is 12016013. The reversal of 12015996 is 69951021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2011 + ... + 5298.

It is an arithmetic number, because the mean of its divisors is an integer number (1176910).

Almost surely, 2^12015996 is an apocalyptic number.

It is an amenable number.

12015996 is an abundant number, since it is smaller than the sum of its proper divisors (16229844).

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

12015996 is a wasteful number, since it uses less digits than its factorization.

12015996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7453 (or 7451 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 12015996 is about 3466.4096699611. The cubic root of 12015996 is about 229.0445302825.

The spelling of 12015996 in words is "twelve million, fifteen thousand, nine hundred ninety-six".