13820672 has 18 divisors (see below), whose sum is σ = 27587868. Its totient is φ = 6910208.

The previous prime is 13820671. The next prime is 13820687. The reversal of 13820672 is 27602831.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13820671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26738 + ... + 27249.

Almost surely, 2^13820672 is an apocalyptic number.

It is an amenable number.

13820672 is a deficient number, since it is larger than the sum of its proper divisors (13767196).

13820672 is an frugal number, since it uses more digits than its factorization.

13820672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54003 (or 53989 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 13820672 is about 3717.6164406781. The cubic root of 13820672 is about 239.9807391950.

The spelling of 13820672 in words is "thirteen million, eight hundred twenty thousand, six hundred seventy-two".