13395840 has 64 divisors (see below), whose sum is σ = 42705360. Its totient is φ = 3571712.

The previous prime is 13395839. The next prime is 13395841. The reversal of 13395840 is 4859331.

It is an interprime number because it is at equal distance from previous prime (13395839) and next prime (13395841).

It is a tau number, because it is divible by the number of its divisors (64).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13395841) 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, 1569 + ... + 5408.

Almost surely, 2^13395840 is an apocalyptic number.

13395840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13395840 is an abundant number, since it is smaller than the sum of its proper divisors (29309520).

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

13395840 is an equidigital number, since it uses as much as digits as its factorization.

13395840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6999 (or 6987 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 13395840 is about 3660.0327867384. The cubic root of 13395840 is about 237.4961919980.

The spelling of 13395840 in words is "thirteen million, three hundred ninety-five thousand, eight hundred forty".