812493320 has 32 divisors (see below), whose sum is σ = 1829088000. Its totient is φ = 324823488.

The previous prime is 812493317. The next prime is 812493329. The reversal of 812493320 is 23394218.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (812493329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91727 + ... + 100193.

It is an arithmetic number, because the mean of its divisors is an integer number (57159000).

Almost surely, 2^812493320 is an apocalyptic number.

It is an amenable number.

812493320 is an abundant number, since it is smaller than the sum of its proper divisors (1016594680).

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

812493320 is a wasteful number, since it uses less digits than its factorization.

812493320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10877 (or 10873 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 812493320 is about 28504.2684522862. The cubic root of 812493320 is about 933.1252319486.

The spelling of 812493320 in words is "eight hundred twelve million, four hundred ninety-three thousand, three hundred twenty".