13632972 has 12 divisors (see below), whose sum is σ = 31810296. Its totient is φ = 4544320.

The previous prime is 13632967. The next prime is 13632973. The reversal of 13632972 is 27923631.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (13632973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568029 + ... + 568052.

It is an arithmetic number, because the mean of its divisors is an integer number (2650858).

Almost surely, 2^13632972 is an apocalyptic number.

13632972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13632972 is an abundant number, since it is smaller than the sum of its proper divisors (18177324).

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

13632972 is a wasteful number, since it uses less digits than its factorization.

13632972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136088 (or 1136086 counting only the distinct ones).

The product of its digits is 13608, while the sum is 33.

The square root of 13632972 is about 3692.2854710870. The cubic root of 13632972 is about 238.8893823518.

The spelling of 13632972 in words is "thirteen million, six hundred thirty-two thousand, nine hundred seventy-two".