10400725 has 12 divisors (see below), whose sum is σ = 12937540. Its totient is φ = 8294400.

The previous prime is 10400713. The next prime is 10400743. The reversal of 10400725 is 52700401.

It can be written as a sum of positive squares in 6 ways, for example, as 628849 + 9771876 = 793^2 + 3126^2 .

It is not a de Polignac number, because 10400725 - 2⁷ = 10400597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13141 + ... + 13909.

Almost surely, 2^10400725 is an apocalyptic number.

It is an amenable number.

10400725 is a deficient number, since it is larger than the sum of its proper divisors (2536815).

10400725 is an equidigital number, since it uses as much as digits as its factorization.

10400725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320 (or 1315 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 10400725 is about 3225.0155038387. The cubic root of 10400725 is about 218.2836486728.

The spelling of 10400725 in words is "ten million, four hundred thousand, seven hundred twenty-five".