512939812 has 72 divisors (see below), whose sum is σ = 1139544000. Its totient is φ = 197736000.

The previous prime is 512939809. The next prime is 512939831. The reversal of 512939812 is 218939215.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

Its product of digits (38880) is a multiple of the sum of its prime divisors (1620).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 341439 + ... + 342937.

It is an arithmetic number, because the mean of its divisors is an integer number (15827000).

Almost surely, 2^512939812 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 512939812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569772000).

512939812 is an abundant number, since it is smaller than the sum of its proper divisors (626604188).

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

512939812 is a wasteful number, since it uses less digits than its factorization.

512939812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633 (or 1620 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 512939812 is about 22648.1745842794. The cubic root of 512939812 is about 800.4891862267.

The spelling of 512939812 in words is "five hundred twelve million, nine hundred thirty-nine thousand, eight hundred twelve".