425868624 has 40 divisors (see below), whose sum is σ = 1222401920. Its totient is φ = 141956064.

The previous prime is 425868613. The next prime is 425868643. The reversal of 425868624 is 426868524.

425868624 is a `hidden beast` number, since 4 + 2 + 586 + 8 + 62 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 425868624.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 492472 + ... + 493335.

It is an arithmetic number, because the mean of its divisors is an integer number (30560048).

Almost surely, 2^425868624 is an apocalyptic number.

It is an amenable number.

425868624 is an abundant number, since it is smaller than the sum of its proper divisors (796533296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425868624 is a wasteful number, since it uses less digits than its factorization.

425868624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985824 (or 985812 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 425868624 is about 20636.5846011398. The cubic root of 425868624 is about 752.3591633501.

The spelling of 425868624 in words is "four hundred twenty-five million, eight hundred sixty-eight thousand, six hundred twenty-four".