342185784 has 16 divisors (see below), whose sum is σ = 855464520. Its totient is φ = 114061920.

The previous prime is 342185777. The next prime is 342185797. The reversal of 342185784 is 487581243.

It is a super-2 number, since 2×342185784² = 234182221543389312, which contains 22 as substring.

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, 7128847 + ... + 7128894.

Almost surely, 2^342185784 is an apocalyptic number.

It is an amenable number.

342185784 is an abundant number, since it is smaller than the sum of its proper divisors (513278736).

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

342185784 is a wasteful number, since it uses less digits than its factorization.

342185784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14257750 (or 14257746 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 342185784 is about 18498.2643510141. The cubic root of 342185784 is about 699.4456727109.

The spelling of 342185784 in words is "three hundred forty-two million, one hundred eighty-five thousand, seven hundred eighty-four".