345244272 has 80 divisors (see below), whose sum is σ = 943272960. Its totient is φ = 108633600.

The previous prime is 345244259. The next prime is 345244331. The reversal of 345244272 is 272442543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58179 + ... + 63837.

It is an arithmetic number, because the mean of its divisors is an integer number (11790912).

Almost surely, 2^345244272 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 345244272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471636480).

345244272 is an abundant number, since it is smaller than the sum of its proper divisors (598028688).

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

345244272 is a wasteful number, since it uses less digits than its factorization.

345244272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5742 (or 5736 counting only the distinct ones).

The product of its digits is 53760, while the sum is 33.

The square root of 345244272 is about 18580.7500386825. The cubic root of 345244272 is about 701.5233978967.

The spelling of 345244272 in words is "three hundred forty-five million, two hundred forty-four thousand, two hundred seventy-two".