344444340 has 96 divisors (see below), whose sum is σ = 984566016. Its totient is φ = 89958400.

The previous prime is 344444323. The next prime is 344444351. The reversal of 344444340 is 43444443.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 344444298 and 344444307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 684529 + ... + 685031.

It is an arithmetic number, because the mean of its divisors is an integer number (10255896).

Almost surely, 2^344444340 is an apocalyptic number.

344444340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344444340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492283008).

344444340 is an abundant number, since it is smaller than the sum of its proper divisors (640121676).

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

344444340 is a wasteful number, since it uses less digits than its factorization.

344444340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 30.

The square root of 344444340 is about 18559.2117289501. The cubic root of 344444340 is about 700.9811683019.

Adding to 344444340 its reverse (43444443), we get a palindrome (387888783).

The spelling of 344444340 in words is "three hundred forty-four million, four hundred forty-four thousand, three hundred forty".