512002120 has 128 divisors (see below), whose sum is σ = 1396972800. Its totient is φ = 164975616.

The previous prime is 512002079. The next prime is 512002129. The reversal of 512002120 is 21200215.

It is a self number, because there is not a number n which added to its sum of digits gives 512002120.

It is not an unprimeable number, because it can be changed into a prime (512002129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 834934 + ... + 835546.

It is an arithmetic number, because the mean of its divisors is an integer number (10913850).

Almost surely, 2^512002120 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 512002120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698486400).

512002120 is an abundant number, since it is smaller than the sum of its proper divisors (884970680).

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

512002120 is a wasteful number, since it uses less digits than its factorization.

512002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 512002120 is about 22627.4638437453. The cubic root of 512002120 is about 800.0011041651.

Adding to 512002120 its reverse (21200215), we get a palindrome (533202335).

The spelling of 512002120 in words is "five hundred twelve million, two thousand, one hundred twenty".