512783490 has 32 divisors (see below), whose sum is σ = 1235241216. Its totient is φ = 136235520.

The previous prime is 512783477. The next prime is 512783497. The reversal of 512783490 is 94387215.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (512783497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23407 + ... + 39666.

It is an arithmetic number, because the mean of its divisors is an integer number (38601288).

Almost surely, 2^512783490 is an apocalyptic number.

512783490 is an abundant number, since it is smaller than the sum of its proper divisors (722457726).

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

512783490 is a wasteful number, since it uses less digits than its factorization.

512783490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63354.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 512783490 is about 22644.7232263943. The cubic root of 512783490 is about 800.4078597360.

The spelling of 512783490 in words is "five hundred twelve million, seven hundred eighty-three thousand, four hundred ninety".