726313626 has 48 divisors (see below), whose sum is σ = 1622380968. Its totient is φ = 234662400.

The previous prime is 726313571. The next prime is 726313657. The reversal of 726313626 is 626313627.

726313626 is a `hidden beast` number, since 7 + 26 + 3 + 1 + 3 + 626 = 666.

726313626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 726248601 + 65025 = 26949^2 + 255^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185206 + ... + 189086.

Almost surely, 2^726313626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726313626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (811190484).

726313626 is an abundant number, since it is smaller than the sum of its proper divisors (896067342).

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

726313626 is a wasteful number, since it uses less digits than its factorization.

726313626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207 (or 4204 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 726313626 is about 26950.2064185045. The cubic root of 726313626 is about 898.8931355779.

Subtracting from 726313626 its reverse (626313627), we obtain a palindrome (99999999).

The spelling of 726313626 in words is "seven hundred twenty-six million, three hundred thirteen thousand, six hundred twenty-six".