726267456 has 42 divisors (see below), whose sum is σ = 2081716182. Its totient is φ = 242088960.

The previous prime is 726267431. The next prime is 726267491. The reversal of 726267456 is 654762627.

It can be written as a sum of positive squares in only one way, i.e., 430977600 + 295289856 = 20760^2 + 17184^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 629865 + ... + 631016.

It is an arithmetic number, because the mean of its divisors is an integer number (49564671).

Almost surely, 2^726267456 is an apocalyptic number.

It is an amenable number.

726267456 is an abundant number, since it is smaller than the sum of its proper divisors (1355448726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

726267456 is a wasteful number, since it uses less digits than its factorization.

726267456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260899 (or 1260886 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 726267456 is about 26949.3498251813. The cubic root of 726267456 is about 898.8740883536.

The spelling of 726267456 in words is "seven hundred twenty-six million, two hundred sixty-seven thousand, four hundred fifty-six".