12490456 has 16 divisors (see below), whose sum is σ = 25548840. Its totient is φ = 5677440.

The previous prime is 12490447. The next prime is 12490459. The reversal of 12490456 is 65409421.

It is a super-2 number, since 2×12490456² = 312022982175872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12490459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70881 + ... + 71056.

Almost surely, 2^12490456 is an apocalyptic number.

It is an amenable number.

12490456 is an abundant number, since it is smaller than the sum of its proper divisors (13058384).

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

12490456 is a wasteful number, since it uses less digits than its factorization.

12490456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141954 (or 141950 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 12490456 is about 3534.1839227748. The cubic root of 12490456 is about 232.0203608765.

Adding to 12490456 its reverse (65409421), we get a palindrome (77899877).

The spelling of 12490456 in words is "twelve million, four hundred ninety thousand, four hundred fifty-six".