344440134 has 128 divisors (see below), whose sum is σ = 843955200. Its totient is φ = 103783680.

The previous prime is 344440133. The next prime is 344440183. The reversal of 344440134 is 431044443.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 344440098 and 344440107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344440133) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2629249 + ... + 2629379.

It is an arithmetic number, because the mean of its divisors is an integer number (6593400).

Almost surely, 2^344440134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344440134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421977600).

344440134 is an abundant number, since it is smaller than the sum of its proper divisors (499515066).

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

344440134 is a wasteful number, since it uses less digits than its factorization.

344440134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 344440134 is about 18559.0984156020. The cubic root of 344440134 is about 700.9783150700.

Adding to 344440134 its reverse (431044443), we get a palindrome (775484577).

The spelling of 344440134 in words is "three hundred forty-four million, four hundred forty thousand, one hundred thirty-four".