12992940 has 48 divisors (see below), whose sum is σ = 40424160. Its totient is φ = 3464640.

The previous prime is 12992933. The next prime is 12992971. The reversal of 12992940 is 4929921.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12992895 and 12992904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11491 + ... + 12570.

It is an arithmetic number, because the mean of its divisors is an integer number (842170).

Almost surely, 2^12992940 is an apocalyptic number.

12992940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12992940 is an abundant number, since it is smaller than the sum of its proper divisors (27431220).

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

12992940 is a wasteful number, since it uses less digits than its factorization.

12992940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24079 (or 24071 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 12992940 is about 3604.5720966572. The cubic root of 12992940 is about 235.0908958774.

The spelling of 12992940 in words is "twelve million, nine hundred ninety-two thousand, nine hundred forty".