13256340 has 24 divisors (see below), whose sum is σ = 37117920. Its totient is φ = 3535008.

The previous prime is 13256333. The next prime is 13256359. The reversal of 13256340 is 4365231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13256340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110410 + ... + 110529.

It is an arithmetic number, because the mean of its divisors is an integer number (1546580).

Almost surely, 2^13256340 is an apocalyptic number.

13256340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13256340 is an abundant number, since it is smaller than the sum of its proper divisors (23861580).

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

13256340 is a wasteful number, since it uses less digits than its factorization.

13256340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220951 (or 220949 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 13256340 is about 3640.9257064653. The cubic root of 13256340 is about 236.6689104683.

The spelling of 13256340 in words is "thirteen million, two hundred fifty-six thousand, three hundred forty".