812845930 has 64 divisors (see below), whose sum is σ = 1638403200. Its totient is φ = 288288000.

The previous prime is 812845909. The next prime is 812845949. The reversal of 812845930 is 39548218.

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, 945841 + ... + 946699.

It is an arithmetic number, because the mean of its divisors is an integer number (25600050).

Almost surely, 2^812845930 is an apocalyptic number.

812845930 is an abundant number, since it is smaller than the sum of its proper divisors (825557270).

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

812845930 is a wasteful number, since it uses less digits than its factorization.

812845930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 812845930 is about 28510.4529953489. The cubic root of 812845930 is about 933.2601999102.

The spelling of 812845930 in words is "eight hundred twelve million, eight hundred forty-five thousand, nine hundred thirty".