342442520 has 64 divisors (see below), whose sum is σ = 889358400. Its totient is φ = 116236800.

The previous prime is 342442519. The next prime is 342442531. The reversal of 342442520 is 25244243.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 342442520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22226 + ... + 34334.

It is an arithmetic number, because the mean of its divisors is an integer number (13896225).

Almost surely, 2^342442520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342442520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444679200).

342442520 is an abundant number, since it is smaller than the sum of its proper divisors (546915880).

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

342442520 is a wasteful number, since it uses less digits than its factorization.

342442520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12228 (or 12224 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 342442520 is about 18505.2025117263. The cubic root of 342442520 is about 699.6205562597.

Adding to 342442520 its reverse (25244243), we get a palindrome (367686763).

The spelling of 342442520 in words is "three hundred forty-two million, four hundred forty-two thousand, five hundred twenty".