512120404 has 48 divisors (see below), whose sum is σ = 943887168. Its totient is φ = 242880768.

The previous prime is 512120383. The next prime is 512120417. The reversal of 512120404 is 404021215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1155807 + ... + 1156249.

It is an arithmetic number, because the mean of its divisors is an integer number (19664316).

Almost surely, 2^512120404 is an apocalyptic number.

It is an amenable number.

512120404 is a deficient number, since it is larger than the sum of its proper divisors (431766764).

512120404 is a wasteful number, since it uses less digits than its factorization.

512120404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 512120404 is about 22630.0774192224. The cubic root of 512120404 is about 800.0627055016.

Adding to 512120404 its reverse (404021215), we get a palindrome (916141619).

The spelling of 512120404 in words is "five hundred twelve million, one hundred twenty thousand, four hundred four".