726238226 has 8 divisors (see below), whose sum is σ = 1244979840. Its totient is φ = 311244948.

The previous prime is 726238199. The next prime is 726238241. The reversal of 726238226 is 622832627.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 726238226.

It is an unprimeable number.

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, 25937066 + ... + 25937093.

It is an arithmetic number, because the mean of its divisors is an integer number (155622480).

Almost surely, 2^726238226 is an apocalyptic number.

726238226 is a deficient number, since it is larger than the sum of its proper divisors (518741614).

726238226 is a wasteful number, since it uses less digits than its factorization.

726238226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51874168.

The product of its digits is 96768, while the sum is 38.

The square root of 726238226 is about 26948.8075060846. The cubic root of 726238226 is about 898.8620292323.

The spelling of 726238226 in words is "seven hundred twenty-six million, two hundred thirty-eight thousand, two hundred twenty-six".