818442925 has 12 divisors (see below), whose sum is σ = 1058994720. Its totient is φ = 626286320.

The previous prime is 818442899. The next prime is 818442949. The reversal of 818442925 is 529244818.

It is not a de Polignac number, because 818442925 - 2¹⁵ = 818410157 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, 711115 + ... + 712264.

It is an arithmetic number, because the mean of its divisors is an integer number (88249560).

Almost surely, 2^818442925 is an apocalyptic number.

It is an amenable number.

818442925 is a deficient number, since it is larger than the sum of its proper divisors (240551795).

818442925 is a wasteful number, since it uses less digits than its factorization.

818442925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423412 (or 1423407 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

The square root of 818442925 is about 28608.4414989702. The cubic root of 818442925 is about 935.3973451057.

The spelling of 818442925 in words is "eight hundred eighteen million, four hundred forty-two thousand, nine hundred twenty-five".