342123404 has 24 divisors (see below), whose sum is σ = 692912640. Its totient is φ = 144767376.

The previous prime is 342123391. The next prime is 342123407. The reversal of 342123404 is 404321243.

It is a self number, because there is not a number n which added to its sum of digits gives 342123404.

It is not an unprimeable number, because it can be changed into a prime (342123407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75122 + ... + 79545.

It is an arithmetic number, because the mean of its divisors is an integer number (28871360).

Almost surely, 2^342123404 is an apocalyptic number.

It is an amenable number.

342123404 is an abundant number, since it is smaller than the sum of its proper divisors (350789236).

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

342123404 is a wasteful number, since it uses less digits than its factorization.

342123404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154757 (or 154755 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 342123404 is about 18496.5781700292. The cubic root of 342123404 is about 699.4031674650.

Adding to 342123404 its reverse (404321243), we get a palindrome (746444647).

The spelling of 342123404 in words is "three hundred forty-two million, one hundred twenty-three thousand, four hundred four".