509342142 has 16 divisors (see below), whose sum is σ = 1019046672. Its totient is φ = 169720320.

The previous prime is 509342123. The next prime is 509342147. The reversal of 509342142 is 241243905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509342147) 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, 5292 + ... + 32352.

It is an arithmetic number, because the mean of its divisors is an integer number (63690417).

Almost surely, 2^509342142 is an apocalyptic number.

509342142 is an abundant number, since it is smaller than the sum of its proper divisors (509704530).

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

509342142 is a wasteful number, since it uses less digits than its factorization.

509342142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30203.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 509342142 is about 22568.6096603225. The cubic root of 509342142 is about 798.6132966645.

The spelling of 509342142 in words is "five hundred nine million, three hundred forty-two thousand, one hundred forty-two".