344945916 has 72 divisors (see below), whose sum is σ = 1009182720. Its totient is φ = 97302816.

The previous prime is 344945891. The next prime is 344945917. The reversal of 344945916 is 619549443.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344945917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11245 + ... + 28571.

Almost surely, 2^344945916 is an apocalyptic number.

344945916 is a gapful number since it is divisible by the number (36) 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 344945916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504591360).

344945916 is an abundant number, since it is smaller than the sum of its proper divisors (664236804).

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

344945916 is a wasteful number, since it uses less digits than its factorization.

344945916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17423 (or 17418 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 344945916 is about 18572.7196716044. The cubic root of 344945916 is about 701.3212569264.

The spelling of 344945916 in words is "three hundred forty-four million, nine hundred forty-five thousand, nine hundred sixteen".