726781248 has 70 divisors (see below), whose sum is σ = 2154422666. Its totient is φ = 242258688.

The previous prime is 726781247. The next prime is 726781259. The reversal of 726781248 is 842187627.

It can be written as a sum of positive squares in only one way, i.e., 694427904 + 32353344 = 26352^2 + 5688^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726781247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 64915 + ... + 75282.

Almost surely, 2^726781248 is an apocalyptic number.

It is an amenable number.

726781248 is an abundant number, since it is smaller than the sum of its proper divisors (1427641418).

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

726781248 is a wasteful number, since it uses less digits than its factorization.

726781248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140221 (or 140202 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 726781248 is about 26958.8806889307. The cubic root of 726781248 is about 899.0860054408.

The spelling of 726781248 in words is "seven hundred twenty-six million, seven hundred eighty-one thousand, two hundred forty-eight".