342309944 has 8 divisors (see below), whose sum is σ = 641831160. Its totient is φ = 171154968.

The previous prime is 342309911. The next prime is 342309949. The reversal of 342309944 is 449903243.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×342309944² = 234352195522566272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 342309898 and 342309907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342309949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21394364 + ... + 21394379.

It is an arithmetic number, because the mean of its divisors is an integer number (80228895).

Almost surely, 2^342309944 is an apocalyptic number.

It is an amenable number.

342309944 is a deficient number, since it is larger than the sum of its proper divisors (299521216).

342309944 is a wasteful number, since it uses less digits than its factorization.

342309944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42788749 (or 42788745 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 342309944 is about 18501.6200371751. The cubic root of 342309944 is about 699.5302589964.

The spelling of 342309944 in words is "three hundred forty-two million, three hundred nine thousand, nine hundred forty-four".