726211812 has 12 divisors (see below), whose sum is σ = 1694494256. Its totient is φ = 242070600.

The previous prime is 726211769. The next prime is 726211847. The reversal of 726211812 is 218112627.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 726211812.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30258814 + ... + 30258837.

Almost surely, 2^726211812 is an apocalyptic number.

It is an amenable number.

726211812 is an abundant number, since it is smaller than the sum of its proper divisors (968282444).

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

726211812 is a wasteful number, since it uses less digits than its factorization.

726211812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60517658 (or 60517656 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 726211812 is about 26948.3174242846. The cubic root of 726211812 is about 898.8511316009.

The spelling of 726211812 in words is "seven hundred twenty-six million, two hundred eleven thousand, eight hundred twelve".