513813244 has 12 divisors (see below), whose sum is σ = 1027626544. Its totient is φ = 220205664.

The previous prime is 513813229. The next prime is 513813269. The reversal of 513813244 is 442318315.

513813244 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9175209 + ... + 9175264.

Almost surely, 2^513813244 is an apocalyptic number.

It is an amenable number.

513813244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

513813244 is a wasteful number, since it uses less digits than its factorization.

513813244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18350484 (or 18350482 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 513813244 is about 22667.4489963030. The cubic root of 513813244 is about 800.9432852457.

The spelling of 513813244 in words is "five hundred thirteen million, eight hundred thirteen thousand, two hundred forty-four".