342840624 has 80 divisors (see below), whose sum is σ = 1020053760. Its totient is φ = 97194240.

The previous prime is 342840613. The next prime is 342840661. The reversal of 342840624 is 426048243.

It is a super-3 number, since 3×342840624³ (a number of 27 digits) contains 333 as substring.

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, 40122 + ... + 47910.

It is an arithmetic number, because the mean of its divisors is an integer number (12750672).

Almost surely, 2^342840624 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 342840624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510026880).

342840624 is an abundant number, since it is smaller than the sum of its proper divisors (677213136).

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

342840624 is a wasteful number, since it uses less digits than its factorization.

342840624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7938 (or 7932 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 342840624 is about 18515.9559299540. The cubic root of 342840624 is about 699.8915641556.

Adding to 342840624 its reverse (426048243), we get a palindrome (768888867).

The spelling of 342840624 in words is "three hundred forty-two million, eight hundred forty thousand, six hundred twenty-four".