726043442 has 8 divisors (see below), whose sum is σ = 1089432876. Its totient is φ = 362899152.

The previous prime is 726043397. The next prime is 726043453. The reversal of 726043442 is 244340627.

It can be written as a sum of positive squares in 2 ways, for example, as 704318521 + 21724921 = 26539^2 + 4661^2 .

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 = 726043399 and 726043408.

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, 53693 + ... + 65840.

Almost surely, 2^726043442 is an apocalyptic number.

726043442 is a deficient number, since it is larger than the sum of its proper divisors (363389434).

726043442 is a wasteful number, since it uses less digits than its factorization.

726043442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122572.

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 726043442 is about 26945.1933004757. The cubic root of 726043442 is about 898.7816609314.

The spelling of 726043442 in words is "seven hundred twenty-six million, forty-three thousand, four hundred forty-two".