726404626 has 8 divisors (see below), whose sum is σ = 1116182844. Its totient is φ = 354343680.

The previous prime is 726404603. The next prime is 726404647. The reversal of 726404626 is 626404627.

It can be written as a sum of positive squares in 2 ways, for example, as 726248601 + 156025 = 26949^2 + 395^2 .

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

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, 4429215 + ... + 4429378.

Almost surely, 2^726404626 is an apocalyptic number.

726404626 is a deficient number, since it is larger than the sum of its proper divisors (389778218).

726404626 is a wasteful number, since it uses less digits than its factorization.

726404626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8858636.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 726404626 is about 26951.8946643831. The cubic root of 726404626 is about 898.9306748522.

Subtracting from 726404626 its reverse (626404627), we obtain a palindrome (99999999).

The spelling of 726404626 in words is "seven hundred twenty-six million, four hundred four thousand, six hundred twenty-six".