726630 has 32 divisors (see below), whose sum is σ = 1780704. Its totient is φ = 189696.

The previous prime is 726629. The next prime is 726641. The reversal of 726630 is 36627.

726630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 726630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1362 + ... + 1818.

It is an arithmetic number, because the mean of its divisors is an integer number (55647).

2⁷²⁶⁶³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (890352).

726630 is an abundant number, since it is smaller than the sum of its proper divisors (1054074).

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

726630 is a wasteful number, since it uses less digits than its factorization.

726630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 726630 is about 852.4259498631. The cubic root of 726630 is about 89.9023632526.

The spelling of 726630 in words is "seven hundred twenty-six thousand, six hundred thirty".