402226825 has 48 divisors (see below), whose sum is σ = 669707136. Its totient is φ = 231436800.

The previous prime is 402226801. The next prime is 402226837. The reversal of 402226825 is 528622204.

It is not a de Polignac number, because 402226825 - 2⁵ = 402226793 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16989 + ... + 33061.

It is an arithmetic number, because the mean of its divisors is an integer number (13952232).

Almost surely, 2^402226825 is an apocalyptic number.

It is an amenable number.

402226825 is a deficient number, since it is larger than the sum of its proper divisors (267480311).

402226825 is a wasteful number, since it uses less digits than its factorization.

402226825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16114 (or 16109 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 402226825 is about 20055.5933594596. The cubic root of 402226825 is about 738.1710525381.

The spelling of 402226825 in words is "four hundred two million, two hundred twenty-six thousand, eight hundred twenty-five".