342447664 has 20 divisors (see below), whose sum is σ = 714530656. Its totient is φ = 158052672.

The previous prime is 342447649. The next prime is 342447673. The reversal of 342447664 is 466744243.

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, 822984 + ... + 823399.

Almost surely, 2^342447664 is an apocalyptic number.

It is an amenable number.

342447664 is an abundant number, since it is smaller than the sum of its proper divisors (372082992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

342447664 is a wasteful number, since it uses less digits than its factorization.

342447664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646404 (or 1646398 counting only the distinct ones).

The product of its digits is 387072, while the sum is 40.

The square root of 342447664 is about 18505.3414991456. The cubic root of 342447664 is about 699.6240593587.

The spelling of 342447664 in words is "three hundred forty-two million, four hundred forty-seven thousand, six hundred sixty-four".