512409330 has 48 divisors (see below), whose sum is σ = 1333739160. Its totient is φ = 136491264.

The previous prime is 512409329. The next prime is 512409377. The reversal of 512409330 is 33904215.

It can be written as a sum of positive squares in 4 ways, for example, as 493772841 + 18636489 = 22221^2 + 4317^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 512409294 and 512409303.

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, 95766 + ... + 100974.

Almost surely, 2^512409330 is an apocalyptic number.

512409330 is an abundant number, since it is smaller than the sum of its proper divisors (821329830).

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

512409330 is a wasteful number, since it uses less digits than its factorization.

512409330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315 (or 6312 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 512409330 is about 22636.4601914699. The cubic root of 512409330 is about 800.2131359196.

The spelling of 512409330 in words is "five hundred twelve million, four hundred nine thousand, three hundred thirty".