344378918 has 16 divisors (see below), whose sum is σ = 557035920. Its totient is φ = 158735136.

The previous prime is 344378899. The next prime is 344378927. The reversal of 344378918 is 819873443.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12413 + ... + 29031.

It is an arithmetic number, because the mean of its divisors is an integer number (34814745).

Almost surely, 2^344378918 is an apocalyptic number.

344378918 is a deficient number, since it is larger than the sum of its proper divisors (212657002).

344378918 is a wasteful number, since it uses less digits than its factorization.

344378918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17431.

The product of its digits is 580608, while the sum is 47.

The square root of 344378918 is about 18557.4491242735. The cubic root of 344378918 is about 700.9367852300.

The spelling of 344378918 in words is "three hundred forty-four million, three hundred seventy-eight thousand, nine hundred eighteen".