344228280 has 128 divisors (see below), whose sum is σ = 1141171200. Its totient is φ = 82368000.

The previous prime is 344228233. The next prime is 344228321. The reversal of 344228280 is 82822443.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 102630 + ... + 105930.

It is an arithmetic number, because the mean of its divisors is an integer number (8915400).

Almost surely, 2^344228280 is an apocalyptic number.

344228280 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 344228280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570585600).

344228280 is an abundant number, since it is smaller than the sum of its proper divisors (796942920).

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

344228280 is a wasteful number, since it uses less digits than its factorization.

344228280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405 (or 3401 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 344228280 is about 18553.3899867383. The cubic root of 344228280 is about 700.8345692222.

The spelling of 344228280 in words is "three hundred forty-four million, two hundred twenty-eight thousand, two hundred eighty".