812925240 has 64 divisors (see below), whose sum is σ = 2468188800. Its totient is φ = 214165632.

The previous prime is 812925229. The next prime is 812925283. The reversal of 812925240 is 42529218.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30850 + ... + 50769.

It is an arithmetic number, because the mean of its divisors is an integer number (38565450).

Almost surely, 2^812925240 is an apocalyptic number.

It is an amenable number.

812925240 is an abundant number, since it is smaller than the sum of its proper divisors (1655263560).

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

812925240 is a wasteful number, since it uses less digits than its factorization.

812925240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81716 (or 81712 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 812925240 is about 28511.8438547913. The cubic root of 812925240 is about 933.2905518939.

The spelling of 812925240 in words is "eight hundred twelve million, nine hundred twenty-five thousand, two hundred forty".