13820732 has 12 divisors (see below), whose sum is σ = 24310440. Its totient is φ = 6874896.

The previous prime is 13820713. The next prime is 13820743. The reversal of 13820732 is 23702831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7982 + ... + 9557.

It is an arithmetic number, because the mean of its divisors is an integer number (2025870).

Almost surely, 2^13820732 is an apocalyptic number.

It is an amenable number.

13820732 is a deficient number, since it is larger than the sum of its proper divisors (10489708).

13820732 is a wasteful number, since it uses less digits than its factorization.

13820732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17740 (or 17738 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 13820732 is about 3717.6245103560. The cubic root of 13820732 is about 239.9810864725.

The spelling of 13820732 in words is "thirteen million, eight hundred twenty thousand, seven hundred thirty-two".