342494420 has 24 divisors (see below), whose sum is σ = 719593224. Its totient is φ = 136930176.

The previous prime is 342494413. The next prime is 342494447. The reversal of 342494420 is 24494243.

It can be written as a sum of positive squares in 4 ways, for example, as 233417284 + 109077136 = 15278^2 + 10444^2 .

It is a super-2 number, since 2×342494420² = 234604855462272800, 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 7 ways as a sum of consecutive naturals, for example, 64922 + ... + 69998.

It is an arithmetic number, because the mean of its divisors is an integer number (29983051).

Almost surely, 2^342494420 is an apocalyptic number.

It is an amenable number.

342494420 is an abundant number, since it is smaller than the sum of its proper divisors (377098804).

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

342494420 is a wasteful number, since it uses less digits than its factorization.

342494420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8459 (or 8457 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 342494420 is about 18506.6047669474. The cubic root of 342494420 is about 699.6558989041.

The spelling of 342494420 in words is "three hundred forty-two million, four hundred ninety-four thousand, four hundred twenty".