342945904 has 120 divisors (see below), whose sum is σ = 804564576. Its totient is φ = 141120000.

The previous prime is 342945871. The next prime is 342945907. The reversal of 342945904 is 409549243.

342945904 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×342945904² = 235223786140754432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342945907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3395454 + ... + 3395554.

Almost surely, 2^342945904 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 342945904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402282288).

342945904 is an abundant number, since it is smaller than the sum of its proper divisors (461618672).

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

342945904 is a wasteful number, since it uses less digits than its factorization.

342945904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 342945904 is about 18518.7986651402. The cubic root of 342945904 is about 699.9631980652.

The spelling of 342945904 in words is "three hundred forty-two million, nine hundred forty-five thousand, nine hundred four".