13390672 has 10 divisors (see below), whose sum is σ = 25944458. Its totient is φ = 6695328.

The previous prime is 13390661. The next prime is 13390691. The reversal of 13390672 is 27609331.

It can be written as a sum of positive squares in only one way, i.e., 13366336 + 24336 = 3656^2 + 156^2 .

It is a super-3 number, since 3×13390672³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418443 + ... + 418474.

Almost surely, 2^13390672 is an apocalyptic number.

It is an amenable number.

13390672 is a deficient number, since it is larger than the sum of its proper divisors (12553786).

13390672 is an equidigital number, since it uses as much as digits as its factorization.

13390672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836925 (or 836919 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 13390672 is about 3659.3267140281. The cubic root of 13390672 is about 237.4656467394.

The spelling of 13390672 in words is "thirteen million, three hundred ninety thousand, six hundred seventy-two".