726168238 has 8 divisors (see below), whose sum is σ = 1090671120. Its totient is φ = 362611200.

The previous prime is 726168227. The next prime is 726168257. The reversal of 726168238 is 832861627.

726168238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 726168194 and 726168203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234538 + ... + 237613.

It is an arithmetic number, because the mean of its divisors is an integer number (136333890).

Almost surely, 2^726168238 is an apocalyptic number.

726168238 is a deficient number, since it is larger than the sum of its proper divisors (364502882).

726168238 is a wasteful number, since it uses less digits than its factorization.

726168238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472922.

The product of its digits is 193536, while the sum is 43.

The square root of 726168238 is about 26947.5089386756. The cubic root of 726168238 is about 898.8331536859.

The spelling of 726168238 in words is "seven hundred twenty-six million, one hundred sixty-eight thousand, two hundred thirty-eight".