726761544 has 64 divisors (see below), whose sum is σ = 1899555840. Its totient is φ = 231274560.

The previous prime is 726761537. The next prime is 726761549. The reversal of 726761544 is 445167627.

It is a junction number, because it is equal to n+sod(n) for n = 726761496 and 726761505.

It is not an unprimeable number, because it can be changed into a prime (726761549) 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, 400399 + ... + 402209.

It is an arithmetic number, because the mean of its divisors is an integer number (29680560).

Almost surely, 2^726761544 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 726761544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (949777920).

726761544 is an abundant number, since it is smaller than the sum of its proper divisors (1172794296).

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

726761544 is a wasteful number, since it uses less digits than its factorization.

726761544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570 (or 2566 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 726761544 is about 26958.5152410143. The cubic root of 726761544 is about 899.0778802308.

The spelling of 726761544 in words is "seven hundred twenty-six million, seven hundred sixty-one thousand, five hundred forty-four".