13670724 has 12 divisors (see below), whose sum is σ = 31898384. Its totient is φ = 4556904.

The previous prime is 13670719. The next prime is 13670731. The reversal of 13670724 is 42707631.

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

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13670691 and 13670700.

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, 569602 + ... + 569625.

Almost surely, 2^13670724 is an apocalyptic number.

It is an amenable number.

13670724 is an abundant number, since it is smaller than the sum of its proper divisors (18227660).

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

13670724 is a wasteful number, since it uses less digits than its factorization.

13670724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139234 (or 1139232 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 13670724 is about 3697.3942175538. The cubic root of 13670724 is about 239.1096874600.

The spelling of 13670724 in words is "thirteen million, six hundred seventy thousand, seven hundred twenty-four".