13245920 has 24 divisors (see below), whose sum is σ = 31293864. Its totient is φ = 5298304.

The previous prime is 13245917. The next prime is 13245931. The reversal of 13245920 is 2954231.

It is a self number, because there is not a number n which added to its sum of digits gives 13245920.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41234 + ... + 41553.

It is an arithmetic number, because the mean of its divisors is an integer number (1303911).

Almost surely, 2^13245920 is an apocalyptic number.

13245920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13245920 is an abundant number, since it is smaller than the sum of its proper divisors (18047944).

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

13245920 is an equidigital number, since it uses as much as digits as its factorization.

13245920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82802 (or 82794 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13245920 is about 3639.4944703901. The cubic root of 13245920 is about 236.6068838838.

The spelling of 13245920 in words is "thirteen million, two hundred forty-five thousand, nine hundred twenty".