13321264 has 20 divisors (see below), whose sum is σ = 28156680. Its totient is φ = 6055040.

The previous prime is 13321229. The next prime is 13321279. The reversal of 13321264 is 46212331.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a nialpdrome in base 16.

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, 37669 + ... + 38020.

It is an arithmetic number, because the mean of its divisors is an integer number (1407834).

Almost surely, 2^13321264 is an apocalyptic number.

It is an amenable number.

13321264 is an abundant number, since it is smaller than the sum of its proper divisors (14835416).

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

13321264 is a wasteful number, since it uses less digits than its factorization.

13321264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75708 (or 75702 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 13321264 is about 3649.8306810043. The cubic root of 13321264 is about 237.0546498149.

Adding to 13321264 its reverse (46212331), we get a palindrome (59533595).

The spelling of 13321264 in words is "thirteen million, three hundred twenty-one thousand, two hundred sixty-four".