13820232 has 32 divisors (see below), whose sum is σ = 34754400. Its totient is φ = 4579584.

The previous prime is 13820189. The next prime is 13820237. The reversal of 13820232 is 23202831.

It is a junction number, because it is equal to n+sod(n) for n = 13820199 and 13820208.

It is not an unprimeable number, because it can be changed into a prime (13820237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2688 + ... + 5904.

It is an arithmetic number, because the mean of its divisors is an integer number (1086075).

Almost surely, 2^13820232 is an apocalyptic number.

13820232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13820232 is an abundant number, since it is smaller than the sum of its proper divisors (20934168).

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

13820232 is a wasteful number, since it uses less digits than its factorization.

13820232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405 (or 3401 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 13820232 is about 3717.5572625045. The cubic root of 13820232 is about 239.9781924630.

The spelling of 13820232 in words is "thirteen million, eight hundred twenty thousand, two hundred thirty-two".