344391372 has 192 divisors, whose sum is σ = 1043159040. Its totient is φ = 97293312.

The previous prime is 344391371. The next prime is 344391379. The reversal of 344391372 is 273193443.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (344391371) 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, 1121643 + ... + 1121949.

It is an arithmetic number, because the mean of its divisors is an integer number (5433120).

Almost surely, 2^344391372 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 344391372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (521579520).

344391372 is an abundant number, since it is smaller than the sum of its proper divisors (698767668).

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

344391372 is a wasteful number, since it uses less digits than its factorization.

344391372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 389 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 344391372 is about 18557.7846738235. The cubic root of 344391372 is about 700.9452346066.

The spelling of 344391372 in words is "three hundred forty-four million, three hundred ninety-one thousand, three hundred seventy-two".