13381964 has 6 divisors (see below), whose sum is σ = 23418444. Its totient is φ = 6690980.

The previous prime is 13381939. The next prime is 13381993. The reversal of 13381964 is 46918331.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1672742 + ... + 1672749.

It is an arithmetic number, because the mean of its divisors is an integer number (3903074).

Almost surely, 2^13381964 is an apocalyptic number.

It is an amenable number.

13381964 is a deficient number, since it is larger than the sum of its proper divisors (10036480).

13381964 is a wasteful number, since it uses less digits than its factorization.

13381964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345495 (or 3345493 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 13381964 is about 3658.1366841604. The cubic root of 13381964 is about 237.4141606687.

The spelling of 13381964 in words is "thirteen million, three hundred eighty-one thousand, nine hundred sixty-four".