342086840 has 32 divisors (see below), whose sum is σ = 771385680. Its totient is φ = 136534272.

The previous prime is 342086807. The next prime is 342086861. The reversal of 342086840 is 48680243.

It is a super-2 number, since 2×342086840² = 234046812202371200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 342086840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9524 + ... + 27836.

Almost surely, 2^342086840 is an apocalyptic number.

It is an amenable number.

342086840 is an abundant number, since it is smaller than the sum of its proper divisors (429298840).

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

342086840 is a wasteful number, since it uses less digits than its factorization.

342086840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18791 (or 18787 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 342086840 is about 18495.5897445851. The cubic root of 342086840 is about 699.3782506385.

The spelling of 342086840 in words is "three hundred forty-two million, eighty-six thousand, eight hundred forty".