642343316 has 12 divisors (see below), whose sum is σ = 1125251232. Its totient is φ = 320842968.

The previous prime is 642343309. The next prime is 642343327. The reversal of 642343316 is 613343246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77750 + ... + 85613.

It is an arithmetic number, because the mean of its divisors is an integer number (93770936).

Almost surely, 2^642343316 is an apocalyptic number.

It is an amenable number.

642343316 is a deficient number, since it is larger than the sum of its proper divisors (482907916).

642343316 is a wasteful number, since it uses less digits than its factorization.

642343316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164350 (or 164348 counting only the distinct ones).

The product of its digits is 31104, while the sum is 32.

The square root of 642343316 is about 25344.4928140217. The cubic root of 642343316 is about 862.8243702166.

The spelling of 642343316 in words is "six hundred forty-two million, three hundred forty-three thousand, three hundred sixteen".