10400225 has 24 divisors (see below), whose sum is σ = 14329440. Its totient is φ = 7424000.

The previous prime is 10400189. The next prime is 10400231. The reversal of 10400225 is 52200401.

It is not a de Polignac number, because 10400225 - 2⁶ = 10400161 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15905 + ... + 16545.

It is an arithmetic number, because the mean of its divisors is an integer number (597060).

Almost surely, 2^10400225 is an apocalyptic number.

It is an amenable number.

10400225 is a deficient number, since it is larger than the sum of its proper divisors (3929215).

10400225 is a wasteful number, since it uses less digits than its factorization.

10400225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 10400225 is about 3224.9379838998. The cubic root of 10400225 is about 218.2801507252.

Adding to 10400225 its reverse (52200401), we get a palindrome (62600626).

The spelling of 10400225 in words is "ten million, four hundred thousand, two hundred twenty-five".