342739578 has 16 divisors (see below), whose sum is σ = 695134656. Its totient is φ = 112637280.

The previous prime is 342739571. The next prime is 342739591. The reversal of 342739578 is 875937243.

It is not an unprimeable number, because it can be changed into a prime (342739571) 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, 401851 + ... + 402702.

It is an arithmetic number, because the mean of its divisors is an integer number (43445916).

Almost surely, 2^342739578 is an apocalyptic number.

342739578 is an abundant number, since it is smaller than the sum of its proper divisors (352395078).

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

342739578 is a wasteful number, since it uses less digits than its factorization.

342739578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804629.

The product of its digits is 1270080, while the sum is 48.

The square root of 342739578 is about 18513.2271092859. The cubic root of 342739578 is about 699.8227973224.

The spelling of 342739578 in words is "three hundred forty-two million, seven hundred thirty-nine thousand, five hundred seventy-eight".