12902740 has 12 divisors (see below), whose sum is σ = 27095796. Its totient is φ = 5161088.

The previous prime is 12902717. The next prime is 12902761. The reversal of 12902740 is 4720921.

It can be written as a sum of positive squares in 2 ways, for example, as 2547216 + 10355524 = 1596^2 + 3218^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322549 + ... + 322588.

It is an arithmetic number, because the mean of its divisors is an integer number (2257983).

Almost surely, 2^12902740 is an apocalyptic number.

12902740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12902740 is an abundant number, since it is smaller than the sum of its proper divisors (14193056).

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

12902740 is a wasteful number, since it uses less digits than its factorization.

12902740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645146 (or 645144 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12902740 is about 3592.0384185028. The cubic root of 12902740 is about 234.5456136085.

The spelling of 12902740 in words is "twelve million, nine hundred two thousand, seven hundred forty".