509342 has 8 divisors (see below), whose sum is σ = 784776. Its totient is φ = 247752.

The previous prime is 509329. The next prime is 509359. The reversal of 509342 is 243905.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3368 + ... + 3515.

It is an arithmetic number, because the mean of its divisors is an integer number (98097).

2⁵⁰⁹³⁴² is an apocalyptic number.

509342 is a deficient number, since it is larger than the sum of its proper divisors (275434).

509342 is a wasteful number, since it uses less digits than its factorization.

509342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6922.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 509342 is about 713.6820020149. The cubic root of 509342 is about 79.8613222449.

The spelling of 509342 in words is "five hundred nine thousand, three hundred forty-two".