509813490 has 16 divisors (see below), whose sum is σ = 1223552448. Its totient is φ = 135950256.

The previous prime is 509813431. The next prime is 509813501. The reversal of 509813490 is 94318905.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8496862 + ... + 8496921.

It is an arithmetic number, because the mean of its divisors is an integer number (76472028).

Almost surely, 2^509813490 is an apocalyptic number.

509813490 is an abundant number, since it is smaller than the sum of its proper divisors (713738958).

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

509813490 is a wasteful number, since it uses less digits than its factorization.

509813490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16993793.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 509813490 is about 22579.0498028593. The cubic root of 509813490 is about 798.8595677487.

The spelling of 509813490 in words is "five hundred nine million, eight hundred thirteen thousand, four hundred ninety".