344864380 has 96 divisors (see below), whose sum is σ = 895297536. Its totient is φ = 108880896.

The previous prime is 344864357. The next prime is 344864393. The reversal of 344864380 is 83468443.

It is a happy number.

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, 110319 + ... + 113401.

It is an arithmetic number, because the mean of its divisors is an integer number (9326016).

Almost surely, 2^344864380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344864380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447648768).

344864380 is an abundant number, since it is smaller than the sum of its proper divisors (550433156).

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

344864380 is a wasteful number, since it uses less digits than its factorization.

344864380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163 (or 3161 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The square root of 344864380 is about 18570.5244944778. The cubic root of 344864380 is about 701.2659947017.

The spelling of 344864380 in words is "three hundred forty-four million, eight hundred sixty-four thousand, three hundred eighty".