12257812 has 24 divisors (see below), whose sum is σ = 25807040. Its totient is φ = 4976640.

The previous prime is 12257809. The next prime is 12257821. The reversal of 12257812 is 21875221.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 10989 + ... + 12052.

Almost surely, 2^12257812 is an apocalyptic number.

It is an amenable number.

12257812 is an abundant number, since it is smaller than the sum of its proper divisors (13549228).

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

12257812 is a wasteful number, since it uses less digits than its factorization.

12257812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23071 (or 23069 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 12257812 is about 3501.1158221344. The cubic root of 12257812 is about 230.5708065416.

The spelling of 12257812 in words is "twelve million, two hundred fifty-seven thousand, eight hundred twelve".