12920484 has 12 divisors (see below), whose sum is σ = 30147824. Its totient is φ = 4306824.

The previous prime is 12920483. The next prime is 12920491. The reversal of 12920484 is 48402921.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (12920483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538342 + ... + 538365.

Almost surely, 2^12920484 is an apocalyptic number.

It is an amenable number.

12920484 is an abundant number, since it is smaller than the sum of its proper divisors (17227340).

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

12920484 is a wasteful number, since it uses less digits than its factorization.

12920484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076714 (or 1076712 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 12920484 is about 3594.5074766927. The cubic root of 12920484 is about 234.6530809901.

The spelling of 12920484 in words is "twelve million, nine hundred twenty thousand, four hundred eighty-four".