726430 has 8 divisors (see below), whose sum is σ = 1307592. Its totient is φ = 290568.

The previous prime is 726419. The next prime is 726431. The reversal of 726430 is 34627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36312 + ... + 36331.

It is an arithmetic number, because the mean of its divisors is an integer number (163449).

2⁷²⁶⁴³⁰ is an apocalyptic number.

726430 is a deficient number, since it is larger than the sum of its proper divisors (581162).

726430 is a wasteful number, since it uses less digits than its factorization.

726430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72650.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 726430 is about 852.3086295468. The cubic root of 726430 is about 89.8941141563.

It can be divided in two parts, 726 and 430, that added together give a square (1156 = 34²).

The spelling of 726430 in words is "seven hundred twenty-six thousand, four hundred thirty".