13401864 has 48 divisors (see below), whose sum is σ = 41483520. Its totient is φ = 3828960.

The previous prime is 13401863. The next prime is 13401907. The reversal of 13401864 is 46810431.

13401864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12792 + ... + 13799.

It is an arithmetic number, because the mean of its divisors is an integer number (864240).

Almost surely, 2^13401864 is an apocalyptic number.

13401864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13401864 is an abundant number, since it is smaller than the sum of its proper divisors (28081656).

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

13401864 is a wasteful number, since it uses less digits than its factorization.

13401864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26610 (or 26603 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 13401864 is about 3660.8556376891. The cubic root of 13401864 is about 237.5317866966.

The spelling of 13401864 in words is "thirteen million, four hundred one thousand, eight hundred sixty-four".