13400625 has 40 divisors (see below), whose sum is σ = 25541824. Its totient is φ = 6120000.

The previous prime is 13400591. The next prime is 13400633. The reversal of 13400625 is 52600431.

It is a happy number.

13400625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13400625 - 2⁶ = 13400561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a zygodrome in base 6.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12615 + ... + 13635.

Almost surely, 2^13400625 is an apocalyptic number.

13400625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13400625 is a deficient number, since it is larger than the sum of its proper divisors (12141199).

13400625 is an equidigital number, since it uses as much as digits as its factorization.

13400625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1036 counting only the distinct ones).

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

The square root of 13400625 is about 3660.6864110437. The cubic root of 13400625 is about 237.5244665468.

The spelling of 13400625 in words is "thirteen million, four hundred thousand, six hundred twenty-five".