12922390 has 32 divisors (see below), whose sum is σ = 25310880. Its totient is φ = 4721664.

The previous prime is 12922373. The next prime is 12922409. The reversal of 12922390 is 9322921.

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, 13446 + ... + 14374.

It is an arithmetic number, because the mean of its divisors is an integer number (790965).

Almost surely, 2^12922390 is an apocalyptic number.

12922390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12922390 is a deficient number, since it is larger than the sum of its proper divisors (12388490).

12922390 is a wasteful number, since it uses less digits than its factorization.

12922390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 12922390 is about 3594.7725936421. The cubic root of 12922390 is about 234.6646189165.

The spelling of 12922390 in words is "twelve million, nine hundred twenty-two thousand, three hundred ninety".