12938990 has 8 divisors (see below), whose sum is σ = 23290200. Its totient is φ = 5175592.

The previous prime is 12938987. The next prime is 12939007. The reversal of 12938990 is 9983921.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 646940 + ... + 646959.

It is an arithmetic number, because the mean of its divisors is an integer number (2911275).

Almost surely, 2^12938990 is an apocalyptic number.

12938990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12938990 is a deficient number, since it is larger than the sum of its proper divisors (10351210).

12938990 is a wasteful number, since it uses less digits than its factorization.

12938990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293906.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 12938990 is about 3597.0807608393. The cubic root of 12938990 is about 234.7650586919.

The spelling of 12938990 in words is "twelve million, nine hundred thirty-eight thousand, nine hundred ninety".