812137404 has 48 divisors (see below), whose sum is σ = 2065375872. Its totient is φ = 246873792.

The previous prime is 812137399. The next prime is 812137427. The reversal of 812137404 is 404731218.

812137404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18414 + ... + 44309.

It is an arithmetic number, because the mean of its divisors is an integer number (43028664).

Almost surely, 2^812137404 is an apocalyptic number.

It is an amenable number.

812137404 is an abundant number, since it is smaller than the sum of its proper divisors (1253238468).

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

812137404 is a wasteful number, since it uses less digits than its factorization.

812137404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62826 (or 62824 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 812137404 is about 28498.0245631167. The cubic root of 812137404 is about 932.9889589487.

The spelling of 812137404 in words is "eight hundred twelve million, one hundred thirty-seven thousand, four hundred four".