12920324 has 12 divisors (see below), whose sum is σ = 22835148. Its totient is φ = 6396000.

The previous prime is 12920317. The next prime is 12920377. The reversal of 12920324 is 42302921.

It can be written as a sum of positive squares in 2 ways, for example, as 6760000 + 6160324 = 2600^2 + 2482^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12920324.

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, 15587 + ... + 16394.

It is an arithmetic number, because the mean of its divisors is an integer number (1902929).

Almost surely, 2^12920324 is an apocalyptic number.

It is an amenable number.

12920324 is a deficient number, since it is larger than the sum of its proper divisors (9914824).

12920324 is a wasteful number, since it uses less digits than its factorization.

12920324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32086 (or 32084 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12920324 is about 3594.4852204453. The cubic root of 12920324 is about 234.6521123822.

The spelling of 12920324 in words is "twelve million, nine hundred twenty thousand, three hundred twenty-four".