344274138 has 96 divisors (see below), whose sum is σ = 862243200. Its totient is φ = 102223296.

The previous prime is 344274137. The next prime is 344274163. The reversal of 344274138 is 831472443.

It is not an unprimeable number, because it can be changed into a prime (344274131) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 182283 + ... + 184161.

It is an arithmetic number, because the mean of its divisors is an integer number (8981700).

Almost surely, 2^344274138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344274138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431121600).

344274138 is an abundant number, since it is smaller than the sum of its proper divisors (517969062).

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

344274138 is a wasteful number, since it uses less digits than its factorization.

344274138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938 (or 1926 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 344274138 is about 18554.6257844237. The cubic root of 344274138 is about 700.8656895053.

The spelling of 344274138 in words is "three hundred forty-four million, two hundred seventy-four thousand, one hundred thirty-eight".