12922590 has 16 divisors (see below), whose sum is σ = 31014288. Its totient is φ = 3446016.

The previous prime is 12922579. The next prime is 12922597. The reversal of 12922590 is 9522921.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 430753 = 12922590 / (1 + 2 + 9 + 2 + 2 + 5 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12922597) 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, 215347 + ... + 215406.

It is an arithmetic number, because the mean of its divisors is an integer number (1938393).

Almost surely, 2^12922590 is an apocalyptic number.

12922590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12922590 is an abundant number, since it is smaller than the sum of its proper divisors (18091698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12922590 is a wasteful number, since it uses less digits than its factorization.

12922590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430763.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 12922590 is about 3594.8004117058. The cubic root of 12922590 is about 234.6658295461.

The spelling of 12922590 in words is "twelve million, nine hundred twenty-two thousand, five hundred ninety".