812914344 has 48 divisors (see below), whose sum is σ = 2401794720. Its totient is φ = 246337440.

The previous prime is 812914307. The next prime is 812914379. The reversal of 812914344 is 443419218.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 812914299 and 812914308.

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, 512412 + ... + 513995.

It is an arithmetic number, because the mean of its divisors is an integer number (50037390).

Almost surely, 2^812914344 is an apocalyptic number.

It is an amenable number.

812914344 is an abundant number, since it is smaller than the sum of its proper divisors (1588880376).

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

812914344 is a wasteful number, since it uses less digits than its factorization.

812914344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026430 (or 1026423 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 812914344 is about 28511.6527756635. The cubic root of 812914344 is about 933.2863821053.

The spelling of 812914344 in words is "eight hundred twelve million, nine hundred fourteen thousand, three hundred forty-four".