12457028 has 12 divisors (see below), whose sum is σ = 21830592. Its totient is φ = 6219720.

The previous prime is 12457019. The next prime is 12457043. The reversal of 12457028 is 82075421.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1793 + ... + 5303.

It is an arithmetic number, because the mean of its divisors is an integer number (1819216).

Almost surely, 2^12457028 is an apocalyptic number.

It is an amenable number.

12457028 is a deficient number, since it is larger than the sum of its proper divisors (9373564).

12457028 is a wasteful number, since it uses less digits than its factorization.

12457028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402 (or 4400 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 12457028 is about 3529.4515154624. The cubic root of 12457028 is about 231.8131918724.

The spelling of 12457028 in words is "twelve million, four hundred fifty-seven thousand, twenty-eight".