344139466 has 48 divisors (see below), whose sum is σ = 604765440. Its totient is φ = 145617920.

The previous prime is 344139461. The next prime is 344139469. The reversal of 344139466 is 664931443.

It is not an unprimeable number, because it can be changed into a prime (344139461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 718215 + ... + 718693.

It is an arithmetic number, because the mean of its divisors is an integer number (12599280).

Almost surely, 2^344139466 is an apocalyptic number.

344139466 is a deficient number, since it is larger than the sum of its proper divisors (260625974).

344139466 is a wasteful number, since it uses less digits than its factorization.

344139466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 622 counting only the distinct ones).

The product of its digits is 186624, while the sum is 40.

The square root of 344139466 is about 18550.9963613818. The cubic root of 344139466 is about 700.7742901583.

The spelling of 344139466 in words is "three hundred forty-four million, one hundred thirty-nine thousand, four hundred sixty-six".