12990626 has 16 divisors (see below), whose sum is σ = 21833280. Its totient is φ = 5744880.

The previous prime is 12990619. The next prime is 12990631. The reversal of 12990626 is 62609921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7166 + ... + 8793.

It is an arithmetic number, because the mean of its divisors is an integer number (1364580).

Almost surely, 2^12990626 is an apocalyptic number.

12990626 is a deficient number, since it is larger than the sum of its proper divisors (8842654).

12990626 is a wasteful number, since it uses less digits than its factorization.

12990626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16009.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 12990626 is about 3604.2511011304. The cubic root of 12990626 is about 235.0769387430.

The spelling of 12990626 in words is "twelve million, nine hundred ninety thousand, six hundred twenty-six".