726560 has 48 divisors (see below), whose sum is σ = 1814400. Its totient is φ = 274176.

The previous prime is 726559. The next prime is 726589. The reversal of 726560 is 65627.

726560 = T₅₁ + T₅₂ + ... + T₁₆₄.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2921 + ... + 3159.

It is an arithmetic number, because the mean of its divisors is an integer number (37800).

2⁷²⁶⁵⁶⁰ 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 726560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (907200).

726560 is an abundant number, since it is smaller than the sum of its proper divisors (1087840).

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

726560 is a wasteful number, since it uses less digits than its factorization.

726560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 726560 is about 852.3848895892. The cubic root of 726560 is about 89.8994762411.

The spelling of 726560 in words is "seven hundred twenty-six thousand, five hundred sixty".