12499960 has 32 divisors (see below), whose sum is σ = 30682800. Its totient is φ = 4545280.

The previous prime is 12499919. The next prime is 12499987. The reversal of 12499960 is 6999421.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13765 + ... + 14644.

Almost surely, 2^12499960 is an apocalyptic number.

12499960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12499960 is an abundant number, since it is smaller than the sum of its proper divisors (18182840).

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

12499960 is a wasteful number, since it uses less digits than its factorization.

12499960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28431 (or 28427 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 12499960 is about 3535.5282490740. The cubic root of 12499960 is about 232.0791941290.

The spelling of 12499960 in words is "twelve million, four hundred ninety-nine thousand, nine hundred sixty".