726745344 has 144 divisors (see below), whose sum is σ = 2110487232. Its totient is φ = 220667904.

The previous prime is 726745343. The next prime is 726745363. The reversal of 726745344 is 443547627.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 726745296 and 726745305.

It is not an unprimeable number, because it can be changed into a prime (726745343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828234 + ... + 829110.

Almost surely, 2^726745344 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 726745344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1055243616).

726745344 is an abundant number, since it is smaller than the sum of its proper divisors (1383741888).

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

726745344 is a wasteful number, since it uses less digits than its factorization.

726745344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992 (or 978 counting only the distinct ones).

The product of its digits is 564480, while the sum is 42.

The square root of 726745344 is about 26958.2147776888. The cubic root of 726745344 is about 899.0711998325.

The spelling of 726745344 in words is "seven hundred twenty-six million, seven hundred forty-five thousand, three hundred forty-four".