12902438 has 16 divisors (see below), whose sum is σ = 19783680. Its totient is φ = 6309576.

The previous prime is 12902437. The next prime is 12902489. The reversal of 12902438 is 83420921.

It is a self number, because there is not a number n which added to its sum of digits gives 12902438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12902431) 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, 19745 + ... + 20387.

It is an arithmetic number, because the mean of its divisors is an integer number (1236480).

Almost surely, 2^12902438 is an apocalyptic number.

12902438 is a deficient number, since it is larger than the sum of its proper divisors (6881242).

12902438 is a wasteful number, since it uses less digits than its factorization.

12902438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 12902438 is about 3591.9963808445. The cubic root of 12902438 is about 234.5437836786.

The spelling of 12902438 in words is "twelve million, nine hundred two thousand, four hundred thirty-eight".