726626512 has 40 divisors (see below), whose sum is σ = 1500741000. Its totient is φ = 339628032.

The previous prime is 726626507. The next prime is 726626521. The reversal of 726626512 is 215626627.

726626512 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 84713616 + 641912896 = 9204^2 + 25336^2 .

It is a super-2 number, since 2×726626512² = 1055972175882572288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31564 + ... + 49492.

It is an arithmetic number, because the mean of its divisors is an integer number (37518525).

Almost surely, 2^726626512 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 726626512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750370500).

726626512 is an abundant number, since it is smaller than the sum of its proper divisors (774114488).

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

726626512 is a wasteful number, since it uses less digits than its factorization.

726626512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18103 (or 18097 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 726626512 is about 26956.0106840756. The cubic root of 726626512 is about 899.0221940134.

The spelling of 726626512 in words is "seven hundred twenty-six million, six hundred twenty-six thousand, five hundred twelve".