812520300 has 36 divisors (see below), whose sum is σ = 2350892936. Its totient is φ = 216672000.

The previous prime is 812520271. The next prime is 812520301. The reversal of 812520300 is 3025218.

It is not an unprimeable number, because it can be changed into a prime (812520301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1353901 + ... + 1354500.

Almost surely, 2^812520300 is an apocalyptic number.

It is an amenable number.

812520300 is an abundant number, since it is smaller than the sum of its proper divisors (1538372636).

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

812520300 is a wasteful number, since it uses less digits than its factorization.

812520300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708418 (or 2708411 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 812520300 is about 28504.7417108102. The cubic root of 812520300 is about 933.1355604192.

Adding to 812520300 its reverse (3025218), we get a palindrome (815545518).

The spelling of 812520300 in words is "eight hundred twelve million, five hundred twenty thousand, three hundred".