512813780 has 48 divisors (see below), whose sum is σ = 1123239936. Its totient is φ = 196439040.

The previous prime is 512813737. The next prime is 512813783. The reversal of 512813780 is 87318215.

It is a self number, because there is not a number n which added to its sum of digits gives 512813780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512813783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55877 + ... + 64403.

It is an arithmetic number, because the mean of its divisors is an integer number (23400832).

Almost surely, 2^512813780 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 512813780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561619968).

512813780 is an abundant number, since it is smaller than the sum of its proper divisors (610426156).

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

512813780 is a wasteful number, since it uses less digits than its factorization.

512813780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8664 (or 8662 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 512813780 is about 22645.3920257522. The cubic root of 512813780 is about 800.4236193937.

The spelling of 512813780 in words is "five hundred twelve million, eight hundred thirteen thousand, seven hundred eighty".