342642140 has 24 divisors (see below), whose sum is σ = 761875632. Its totient is φ = 128994560.

The previous prime is 342642133. The next prime is 342642161. The reversal of 342642140 is 41246243.

It is a super-2 number, since 2×342642140² = 234807272207559200, 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, 503546 + ... + 504225.

It is an arithmetic number, because the mean of its divisors is an integer number (31744818).

Almost surely, 2^342642140 is an apocalyptic number.

It is an amenable number.

342642140 is an abundant number, since it is smaller than the sum of its proper divisors (419233492).

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

342642140 is a wasteful number, since it uses less digits than its factorization.

342642140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007797 (or 1007795 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 342642140 is about 18510.5953442886. The cubic root of 342642140 is about 699.7564731110.

Adding to 342642140 its reverse (41246243), we get a palindrome (383888383).

The spelling of 342642140 in words is "three hundred forty-two million, six hundred forty-two thousand, one hundred forty".