13439572 has 12 divisors (see below), whose sum is σ = 23557716. Its totient is φ = 6708800.

The previous prime is 13439527. The next prime is 13439633. The reversal of 13439572 is 27593431.

It can be written as a sum of positive squares in 2 ways, for example, as 11600836 + 1838736 = 3406^2 + 1356^2 .

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, 408 + ... + 5200.

It is an arithmetic number, because the mean of its divisors is an integer number (1963143).

Almost surely, 2^13439572 is an apocalyptic number.

It is an amenable number.

13439572 is a deficient number, since it is larger than the sum of its proper divisors (10118144).

13439572 is a wasteful number, since it uses less digits than its factorization.

13439572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5498 (or 5496 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The square root of 13439572 is about 3666.0021822143. The cubic root of 13439572 is about 237.7543542756.

The spelling of 13439572 in words is "thirteen million, four hundred thirty-nine thousand, five hundred seventy-two".