726632868 has 48 divisors (see below), whose sum is σ = 1833826176. Its totient is φ = 222608640.

The previous prime is 726632867. The next prime is 726632897. The reversal of 726632868 is 868236627.

It is a happy number.

726632868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (726632861) 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, 26353 + ... + 46343.

It is an arithmetic number, because the mean of its divisors is an integer number (38204712).

Almost surely, 2^726632868 is an apocalyptic number.

726632868 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726632868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (916913088).

726632868 is an abundant number, since it is smaller than the sum of its proper divisors (1107193308).

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

726632868 is a wasteful number, since it uses less digits than its factorization.

726632868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20244 (or 20242 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 726632868 is about 26956.1285796013. The cubic root of 726632868 is about 899.0248153364.

The spelling of 726632868 in words is "seven hundred twenty-six million, six hundred thirty-two thousand, eight hundred sixty-eight".