12508940 has 24 divisors (see below), whose sum is σ = 27814752. Its totient is φ = 4709120.

The previous prime is 12508931. The next prime is 12508943. The reversal of 12508940 is 4980521.

It is not an unprimeable number, because it can be changed into a prime (12508943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18056 + ... + 18735.

It is an arithmetic number, because the mean of its divisors is an integer number (1158948).

Almost surely, 2^12508940 is an apocalyptic number.

12508940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12508940 is an abundant number, since it is smaller than the sum of its proper divisors (15305812).

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

12508940 is a wasteful number, since it uses less digits than its factorization.

12508940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36817 (or 36815 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12508940 is about 3536.7979868802. The cubic root of 12508940 is about 232.1347562346.

The spelling of 12508940 in words is "twelve million, five hundred eight thousand, nine hundred forty".