723274344 has 96 divisors (see below), whose sum is σ = 2115477000. Its totient is φ = 221921280.

The previous prime is 723274301. The next prime is 723274379. The reversal of 723274344 is 443472327.

It can be written as a sum of positive squares in 4 ways, for example, as 609596100 + 113678244 = 24690^2 + 10662^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 723274299 and 723274308.

It is an unprimeable number.

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, 419404 + ... + 421124.

Almost surely, 2^723274344 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 723274344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1057738500).

723274344 is an abundant number, since it is smaller than the sum of its proper divisors (1392202656).

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

723274344 is a wasteful number, since it uses less digits than its factorization.

723274344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195 (or 2188 counting only the distinct ones).

The product of its digits is 112896, while the sum is 36.

The square root of 723274344 is about 26893.7603172186. The cubic root of 723274344 is about 897.6375671791.

The spelling of 723274344 in words is "seven hundred twenty-three million, two hundred seventy-four thousand, three hundred forty-four".