12928790 has 32 divisors (see below), whose sum is σ = 26763264. Its totient is φ = 4404960.

The previous prime is 12928757. The next prime is 12928813. The reversal of 12928790 is 9782921.

It is a super-2 number, since 2×12928790² = 334307221728200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12887 + ... + 13853.

It is an arithmetic number, because the mean of its divisors is an integer number (836352).

Almost surely, 2^12928790 is an apocalyptic number.

12928790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12928790 is an abundant number, since it is smaller than the sum of its proper divisors (13834474).

12928790 is a wasteful number, since it uses less digits than its factorization.

12928790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 12928790 is about 3595.6626649340. The cubic root of 12928790 is about 234.7033528682.

The spelling of 12928790 in words is "twelve million, nine hundred twenty-eight thousand, seven hundred ninety".