509458368 has 28 divisors (see below), whose sum is σ = 1347942440. Its totient is φ = 169819392.

The previous prime is 509458337. The next prime is 509458403. The reversal of 509458368 is 863854905.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1326523 + ... + 1326906.

Almost surely, 2^509458368 is an apocalyptic number.

It is an amenable number.

509458368 is an abundant number, since it is smaller than the sum of its proper divisors (838484072).

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

509458368 is a wasteful number, since it uses less digits than its factorization.

509458368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653444 (or 2653434 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 509458368 is about 22571.1844616095. The cubic root of 509458368 is about 798.6740368246.

The spelling of 509458368 in words is "five hundred nine million, four hundred fifty-eight thousand, three hundred sixty-eight".