13321372 has 12 divisors (see below), whose sum is σ = 23345560. Its totient is φ = 6651216.

The previous prime is 13321361. The next prime is 13321379. The reversal of 13321372 is 27312331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498 + ... + 5374.

Almost surely, 2^13321372 is an apocalyptic number.

It is an amenable number.

13321372 is a deficient number, since it is larger than the sum of its proper divisors (10024188).

13321372 is a wasteful number, since it uses less digits than its factorization.

13321372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4740 (or 4738 counting only the distinct ones).

The product of its digits is 756, while the sum is 22.

The square root of 13321372 is about 3649.8454761811. The cubic root of 13321372 is about 237.0552904406.

It can be divided in two parts, 1332 and 1372, that added together give a square (2704 = 52²).

The spelling of 13321372 in words is "thirteen million, three hundred twenty-one thousand, three hundred seventy-two".