344649879 has 18 divisors (see below), whose sum is σ = 579106320. Its totient is φ = 196942536.

The previous prime is 344649869. The next prime is 344649881. The reversal of 344649879 is 978946443.

It is a happy number.

It is not a de Polignac number, because 344649879 - 2⁸ = 344649623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344649839) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 390319 + ... + 391200.

Almost surely, 2^344649879 is an apocalyptic number.

344649879 is a deficient number, since it is larger than the sum of its proper divisors (234456441).

344649879 is a wasteful number, since it uses less digits than its factorization.

344649879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781539 (or 781529 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 344649879 is about 18564.7482880862. The cubic root of 344649879 is about 701.1205718790.

The spelling of 344649879 in words is "three hundred forty-four million, six hundred forty-nine thousand, eight hundred seventy-nine".