726268554 has 48 divisors (see below), whose sum is σ = 1721663424. Its totient is φ = 219436800.

The previous prime is 726268549. The next prime is 726268561. The reversal of 726268554 is 455862627.

726268554 is a `hidden beast` number, since 72 + 6 + 26 + 8 + 554 = 666.

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, 64699 + ... + 75089.

It is an arithmetic number, because the mean of its divisors is an integer number (35867988).

Almost surely, 2^726268554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726268554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (860831712).

726268554 is an abundant number, since it is smaller than the sum of its proper divisors (995394870).

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

726268554 is a wasteful number, since it uses less digits than its factorization.

726268554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10763 (or 10760 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 726268554 is about 26949.3701967226. The cubic root of 726268554 is about 898.8745413379.

It can be divided in two parts, 72 and 6268554, that added together give a palindrome (6268626).

The spelling of 726268554 in words is "seven hundred twenty-six million, two hundred sixty-eight thousand, five hundred fifty-four".