344155664 has 20 divisors (see below), whose sum is σ = 701897040. Its totient is φ = 163020960.

The previous prime is 344155663. The next prime is 344155697. The reversal of 344155664 is 466551443.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (344155661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565742 + ... + 566349.

It is an arithmetic number, because the mean of its divisors is an integer number (35094852).

Almost surely, 2^344155664 is an apocalyptic number.

It is an amenable number.

344155664 is an abundant number, since it is smaller than the sum of its proper divisors (357741376).

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

344155664 is a wasteful number, since it uses less digits than its factorization.

344155664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132118 (or 1132112 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 344155664 is about 18551.4329365685. The cubic root of 344155664 is about 700.7852846969.

The spelling of 344155664 in words is "three hundred forty-four million, one hundred fifty-five thousand, six hundred sixty-four".