13257304 has 16 divisors (see below), whose sum is σ = 24955920. Its totient is φ = 6602400.

The previous prime is 13257271. The next prime is 13257317. The reversal of 13257304 is 40375231.

It is a super-2 number, since 2×13257304² = 351512218696832, which contains 22 as substring.

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, 1047 + ... + 5254.

It is an arithmetic number, because the mean of its divisors is an integer number (1559745).

Almost surely, 2^13257304 is an apocalyptic number.

It is an amenable number.

13257304 is a deficient number, since it is larger than the sum of its proper divisors (11698616).

13257304 is a wasteful number, since it uses less digits than its factorization.

13257304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6570 (or 6566 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 13257304 is about 3641.0580879739. The cubic root of 13257304 is about 236.6746471774.

It can be divided in two parts, 1325 and 7304, that multiplied together give a triangular number (9677800 = T₄₃₉₉).

The spelling of 13257304 in words is "thirteen million, two hundred fifty-seven thousand, three hundred four".