726654280 has 64 divisors (see below), whose sum is σ = 1795582080. Its totient is φ = 262464000.

The previous prime is 726654233. The next prime is 726654323. The reversal of 726654280 is 82456627.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60972 + ... + 71908.

It is an arithmetic number, because the mean of its divisors is an integer number (28055970).

Almost surely, 2^726654280 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 726654280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (897791040).

726654280 is an abundant number, since it is smaller than the sum of its proper divisors (1068927800).

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

726654280 is a wasteful number, since it uses less digits than its factorization.

726654280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110 (or 11106 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 726654280 is about 26956.5257405327. The cubic root of 726654280 is about 899.0336458987.

The spelling of 726654280 in words is "seven hundred twenty-six million, six hundred fifty-four thousand, two hundred eighty".