726006442 has 12 divisors (see below), whose sum is σ = 1266807330. Its totient is φ = 311145576.

The previous prime is 726006419. The next prime is 726006467. The reversal of 726006442 is 244600627.

It can be written as a sum of positive squares in only one way, i.e., 443060401 + 282946041 = 21049^2 + 16821^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3704017 + ... + 3704212.

Almost surely, 2^726006442 is an apocalyptic number.

726006442 is a deficient number, since it is larger than the sum of its proper divisors (540800888).

726006442 is a wasteful number, since it uses less digits than its factorization.

726006442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7408245 (or 7408238 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 726006442 is about 26944.5067128719. The cubic root of 726006442 is about 898.7663930266.

The spelling of 726006442 in words is "seven hundred twenty-six million, six thousand, four hundred forty-two".