13256400 has 60 divisors (see below), whose sum is σ = 42468512. Its totient is φ = 3534720.

The previous prime is 13256377. The next prime is 13256401. The reversal of 13256400 is 465231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13256401) 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, 4324 + ... + 6723.

Almost surely, 2^13256400 is an apocalyptic number.

13256400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13256400 is an abundant number, since it is smaller than the sum of its proper divisors (29212112).

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

13256400 is a wasteful number, since it uses less digits than its factorization.

13256400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11068 (or 11057 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13256400 is about 3640.9339461188. The cubic root of 13256400 is about 236.6692675330.

The spelling of 13256400 in words is "thirteen million, two hundred fifty-six thousand, four hundred".