12457492 has 12 divisors (see below), whose sum is σ = 21912660. Its totient is φ = 6196736.

The previous prime is 12457457. The next prime is 12457499. The reversal of 12457492 is 29475421.

It can be written as a sum of positive squares in 2 ways, for example, as 6533136 + 5924356 = 2556^2 + 2434^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12457499) 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 3 ways as a sum of consecutive naturals, for example, 7117 + ... + 8692.

It is an arithmetic number, because the mean of its divisors is an integer number (1826055).

Almost surely, 2^12457492 is an apocalyptic number.

It is an amenable number.

12457492 is a deficient number, since it is larger than the sum of its proper divisors (9455168).

12457492 is a wasteful number, since it uses less digits than its factorization.

12457492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16010 (or 16008 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 12457492 is about 3529.5172474433. The cubic root of 12457492 is about 231.8160700331.

The spelling of 12457492 in words is "twelve million, four hundred fifty-seven thousand, four hundred ninety-two".