342512216 has 8 divisors (see below), whose sum is σ = 642210420. Its totient is φ = 171256104.

The previous prime is 342512201. The next prime is 342512227. The reversal of 342512216 is 612215243.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21407006 + ... + 21407021.

Almost surely, 2^342512216 is an apocalyptic number.

It is an amenable number.

342512216 is a deficient number, since it is larger than the sum of its proper divisors (299698204).

342512216 is a wasteful number, since it uses less digits than its factorization.

342512216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42814033 (or 42814029 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 342512216 is about 18507.0855620219. The cubic root of 342512216 is about 699.6680167276.

Adding to 342512216 its reverse (612215243), we get a palindrome (954727459).

The spelling of 342512216 in words is "three hundred forty-two million, five hundred twelve thousand, two hundred sixteen".