12904590 has 32 divisors (see below), whose sum is σ = 31072896. Its totient is φ = 3429920.

The previous prime is 12904537. The next prime is 12904603. The reversal of 12904590 is 9540921.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

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, 12805 + ... + 13775.

It is an arithmetic number, because the mean of its divisors is an integer number (971028).

Almost surely, 2^12904590 is an apocalyptic number.

12904590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12904590 is an abundant number, since it is smaller than the sum of its proper divisors (18168306).

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

12904590 is a wasteful number, since it uses less digits than its factorization.

12904590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424.

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

The square root of 12904590 is about 3592.2959232224. The cubic root of 12904590 is about 234.5568228206.

The spelling of 12904590 in words is "twelve million, nine hundred four thousand, five hundred ninety".