13620172 has 12 divisors (see below), whose sum is σ = 23861376. Its totient is φ = 6802640.

The previous prime is 13620151. The next prime is 13620197. The reversal of 13620172 is 27102631.

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, 5397 + ... + 7507.

It is an arithmetic number, because the mean of its divisors is an integer number (1988448).

Almost surely, 2^13620172 is an apocalyptic number.

It is an amenable number.

13620172 is a deficient number, since it is larger than the sum of its proper divisors (10241204).

13620172 is a wasteful number, since it uses less digits than its factorization.

13620172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728 (or 3726 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 13620172 is about 3690.5517202716. The cubic root of 13620172 is about 238.8145945120.

The spelling of 13620172 in words is "thirteen million, six hundred twenty thousand, one hundred seventy-two".