12920574 has 8 divisors (see below), whose sum is σ = 25841160. Its totient is φ = 4306856.

The previous prime is 12920563. The next prime is 12920581. The reversal of 12920574 is 47502921.

It is a sphenic number, since it is the product of 3 distinct primes.

12920574 is an admirable number.

It is a congruent number.

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, 1076709 + ... + 1076720.

It is an arithmetic number, because the mean of its divisors is an integer number (3230145).

Almost surely, 2^12920574 is an apocalyptic number.

12920574 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12920574 is a wasteful number, since it uses less digits than its factorization.

12920574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153434.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 12920574 is about 3594.5199957713. The cubic root of 12920574 is about 234.6536258285.

The spelling of 12920574 in words is "twelve million, nine hundred twenty thousand, five hundred seventy-four".