726336394 has 32 divisors (see below), whose sum is σ = 1270025856. Its totient is φ = 305104320.

The previous prime is 726336379. The next prime is 726336419. The reversal of 726336394 is 493633627.

It is a self number, because there is not a number n which added to its sum of digits gives 726336394.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269377 + ... + 272059.

It is an arithmetic number, because the mean of its divisors is an integer number (39688308).

Almost surely, 2^726336394 is an apocalyptic number.

726336394 is a deficient number, since it is larger than the sum of its proper divisors (543689462).

726336394 is a wasteful number, since it uses less digits than its factorization.

726336394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070.

The product of its digits is 489888, while the sum is 43.

The square root of 726336394 is about 26950.6288238327. The cubic root of 726336394 is about 898.9025281159.

The spelling of 726336394 in words is "seven hundred twenty-six million, three hundred thirty-six thousand, three hundred ninety-four".