12157796 has 24 divisors (see below), whose sum is σ = 25596480. Its totient is φ = 4936032.

The previous prime is 12157787. The next prime is 12157799. The reversal of 12157796 is 69775121.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (12157799) 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 7 ways as a sum of consecutive naturals, for example, 10895 + ... + 11958.

It is an arithmetic number, because the mean of its divisors is an integer number (1066520).

Almost surely, 2^12157796 is an apocalyptic number.

It is an amenable number.

12157796 is an abundant number, since it is smaller than the sum of its proper divisors (13438684).

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

12157796 is a wasteful number, since it uses less digits than its factorization.

12157796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22883 (or 22881 counting only the distinct ones).

The product of its digits is 26460, while the sum is 38.

The square root of 12157796 is about 3486.8031203382. The cubic root of 12157796 is about 229.9419891504.

The spelling of 12157796 in words is "twelve million, one hundred fifty-seven thousand, seven hundred ninety-six".