342638492 has 24 divisors (see below), whose sum is σ = 686802144. Its totient is φ = 146518272.

The previous prime is 342638489. The next prime is 342638539. The reversal of 342638492 is 294836243.

It is a happy number.

It is a super-2 number, since 2×342638492² = 234802272400068128, 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, 593 + ... + 26184.

It is an arithmetic number, because the mean of its divisors is an integer number (28616756).

Almost surely, 2^342638492 is an apocalyptic number.

It is an amenable number.

342638492 is an abundant number, since it is smaller than the sum of its proper divisors (344163652).

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

342638492 is a wasteful number, since it uses less digits than its factorization.

342638492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27245 (or 27243 counting only the distinct ones).

The product of its digits is 248832, while the sum is 41.

The square root of 342638492 is about 18510.4968058667. The cubic root of 342638492 is about 699.7539897420.

The spelling of 342638492 in words is "three hundred forty-two million, six hundred thirty-eight thousand, four hundred ninety-two".