726208 has 28 divisors (see below), whose sum is σ = 1647952. Its totient is φ = 311040.

The previous prime is 726191. The next prime is 726221. The reversal of 726208 is 802627.

It is a tau number, because it is divible by the number of its divisors (28).

It is a plaindrome in base 11.

It is an unprimeable number.

726208 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 363 + ... + 1258.

2⁷²⁶²⁰⁸ is an apocalyptic number.

It is an amenable number.

726208 is an abundant number, since it is smaller than the sum of its proper divisors (921744).

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

726208 is a wasteful number, since it uses less digits than its factorization.

726208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640 (or 1630 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 726208 is about 852.1783850814. The cubic root of 726208 is about 89.8849558861.

The spelling of 726208 in words is "seven hundred twenty-six thousand, two hundred eight".