513387490 has 32 divisors (see below), whose sum is σ = 1152123264. Its totient is φ = 160016640.

The previous prime is 513387487. The next prime is 513387503. The reversal of 513387490 is 94783315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332599 + ... + 334138.

It is an arithmetic number, because the mean of its divisors is an integer number (36003852).

Almost surely, 2^513387490 is an apocalyptic number.

513387490 is an abundant number, since it is smaller than the sum of its proper divisors (638735774).

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

513387490 is a wasteful number, since it uses less digits than its factorization.

513387490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666762.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 513387490 is about 22658.0557418327. The cubic root of 513387490 is about 800.7219992420.

The spelling of 513387490 in words is "five hundred thirteen million, three hundred eighty-seven thousand, four hundred ninety".