342421444 has 24 divisors (see below), whose sum is σ = 620625600. Its totient is φ = 165113760.

The previous prime is 342421441. The next prime is 342421481. The reversal of 342421444 is 444124243.

It is a super-2 number, since 2×342421444² = 234504890622090272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (342421441) 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, 181297 + ... + 183175.

It is an arithmetic number, because the mean of its divisors is an integer number (25859400).

Almost surely, 2^342421444 is an apocalyptic number.

It is an amenable number.

342421444 is a deficient number, since it is larger than the sum of its proper divisors (278204156).

342421444 is a wasteful number, since it uses less digits than its factorization.

342421444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483 (or 3481 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 342421444 is about 18504.6330414845. The cubic root of 342421444 is about 699.6062029941.

Adding to 342421444 its reverse (444124243), we get a palindrome (786545687).

The spelling of 342421444 in words is "three hundred forty-two million, four hundred twenty-one thousand, four hundred forty-four".