342440120 has 128 divisors (see below), whose sum is σ = 889574400. Its totient is φ = 117465600.

The previous prime is 342440117. The next prime is 342440183. The reversal of 342440120 is 21044243.

It is a super-2 number, since 2×342440120² = 234530471571228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 342440092 and 342440101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 599435 + ... + 600005.

It is an arithmetic number, because the mean of its divisors is an integer number (6949800).

Almost surely, 2^342440120 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 342440120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444787200).

342440120 is an abundant number, since it is smaller than the sum of its proper divisors (547134280).

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

342440120 is a wasteful number, since it uses less digits than its factorization.

342440120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 342440120 is about 18505.1376649837. The cubic root of 342440120 is about 699.6189218314.

Adding to 342440120 its reverse (21044243), we get a palindrome (363484363).

The spelling of 342440120 in words is "three hundred forty-two million, four hundred forty thousand, one hundred twenty".