509675420 has 24 divisors (see below), whose sum is σ = 1075127424. Its totient is φ = 202954176.

The previous prime is 509675393. The next prime is 509675429. The reversal of 509675420 is 24576905.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509675429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52679 + ... + 61598.

It is an arithmetic number, because the mean of its divisors is an integer number (44796976).

Almost surely, 2^509675420 is an apocalyptic number.

It is an amenable number.

509675420 is an abundant number, since it is smaller than the sum of its proper divisors (565452004).

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

509675420 is a wasteful number, since it uses less digits than its factorization.

509675420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114509 (or 114507 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 509675420 is about 22575.9921155195. The cubic root of 509675420 is about 798.7874443144.

The spelling of 509675420 in words is "five hundred nine million, six hundred seventy-five thousand, four hundred twenty".