509456898 has 32 divisors (see below), whose sum is σ = 1159744320. Its totient is φ = 165676320.

The previous prime is 509456897. The next prime is 509456903. The reversal of 509456898 is 898654905.

It is a happy number.

509456898 is a `hidden beast` number, since 509 + 4 + 56 + 89 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (509456897) 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, 112840 + ... + 117267.

It is an arithmetic number, because the mean of its divisors is an integer number (36242010).

Almost surely, 2^509456898 is an apocalyptic number.

509456898 is an abundant number, since it is smaller than the sum of its proper divisors (650287422).

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

509456898 is a wasteful number, since it uses less digits than its factorization.

509456898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230159 (or 230153 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The square root of 509456898 is about 22571.1518979426. The cubic root of 509456898 is about 798.6732686546.

The spelling of 509456898 in words is "five hundred nine million, four hundred fifty-six thousand, eight hundred ninety-eight".