342221144 has 8 divisors (see below), whose sum is σ = 641664660. Its totient is φ = 171110568.

The previous prime is 342221119. The next prime is 342221167. The reversal of 342221144 is 441122243.

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

It is a super-2 number, since 2×342221144² = 234230622801337472, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 21388814 + ... + 21388829.

Almost surely, 2^342221144 is an apocalyptic number.

It is an amenable number.

342221144 is a deficient number, since it is larger than the sum of its proper divisors (299443516).

342221144 is a wasteful number, since it uses less digits than its factorization.

342221144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42777649 (or 42777645 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 342221144 is about 18499.2200916687. The cubic root of 342221144 is about 699.4697644453.

Adding to 342221144 its reverse (441122243), we get a palindrome (783343387).

The spelling of 342221144 in words is "three hundred forty-two million, two hundred twenty-one thousand, one hundred forty-four".