344738772 has 72 divisors (see below), whose sum is σ = 999974976. Its totient is φ = 98095104.

The previous prime is 344738753. The next prime is 344738773. The reversal of 344738772 is 277837443.

344738772 is a `hidden beast` number, since 34 + 473 + 87 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344738773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62103 + ... + 67425.

Almost surely, 2^344738772 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 344738772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499987488).

344738772 is an abundant number, since it is smaller than the sum of its proper divisors (655236204).

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

344738772 is a wasteful number, since it uses less digits than its factorization.

344738772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5597 (or 5592 counting only the distinct ones).

The product of its digits is 790272, while the sum is 45.

The square root of 344738772 is about 18567.1422679959. The cubic root of 344738772 is about 701.1808449825.

The spelling of 344738772 in words is "three hundred forty-four million, seven hundred thirty-eight thousand, seven hundred seventy-two".