812394576 has 160 divisors (see below), whose sum is σ = 2678757120. Its totient is φ = 230916096.

The previous prime is 812394563. The next prime is 812394593. The reversal of 812394576 is 675493218.

It is a super-2 number, since 2×812394576² = 1319969894228439552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 704016 + ... + 705168.

It is an arithmetic number, because the mean of its divisors is an integer number (16742232).

Almost surely, 2^812394576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 812394576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1339378560).

812394576 is an abundant number, since it is smaller than the sum of its proper divisors (1866362544).

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

812394576 is a wasteful number, since it uses less digits than its factorization.

812394576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410 (or 1398 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 812394576 is about 28502.5363081955. The cubic root of 812394576 is about 933.0874288683.

The spelling of 812394576 in words is "eight hundred twelve million, three hundred ninety-four thousand, five hundred seventy-six".