726298812 has 72 divisors (see below), whose sum is σ = 1914088176. Its totient is φ = 240807168.

The previous prime is 726298753. The next prime is 726298813. The reversal of 726298812 is 218892627.

726298812 is a `hidden beast` number, since 7 + 2 + 629 + 8 + 8 + 12 = 666.

726298812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×726298812² = 1055019928625222688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726298813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189588 + ... + 193380.

It is an arithmetic number, because the mean of its divisors is an integer number (26584558).

Almost surely, 2^726298812 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 726298812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (957044088).

726298812 is an abundant number, since it is smaller than the sum of its proper divisors (1187789364).

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

726298812 is a wasteful number, since it uses less digits than its factorization.

726298812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4009 (or 3995 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 726298812 is about 26949.9315769076. The cubic root of 726298812 is about 898.8870242172.

The spelling of 726298812 in words is "seven hundred twenty-six million, two hundred ninety-eight thousand, eight hundred twelve".