518240930 has 32 divisors (see below), whose sum is σ = 946908144. Its totient is φ = 204189696.

The previous prime is 518240929. The next prime is 518240951. The reversal of 518240930 is 39042815.

It can be written as a sum of positive squares in 8 ways, for example, as 86806489 + 431434441 = 9317^2 + 20771^2 .

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, 224864 + ... + 227156.

Almost surely, 2^518240930 is an apocalyptic number.

518240930 is a deficient number, since it is larger than the sum of its proper divisors (428667214).

518240930 is a wasteful number, since it uses less digits than its factorization.

518240930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 518240930 is about 22764.9056663980. The cubic root of 518240930 is about 803.2373660300.

The spelling of 518240930 in words is "five hundred eighteen million, two hundred forty thousand, nine hundred thirty".