722273441 has 8 divisors (see below), whose sum is σ = 768988584. Its totient is φ = 676028160.

The previous prime is 722273437. The next prime is 722273459. The reversal of 722273441 is 144372227.

It can be written as a sum of positive squares in 4 ways, for example, as 174900625 + 547372816 = 13225^2 + 23396^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 722273441 - 2² = 722273437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 722273398 and 722273407.

It is not an unprimeable number, because it can be changed into a prime (722273401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114290 + ... + 120443.

It is an arithmetic number, because the mean of its divisors is an integer number (96123573).

Almost surely, 2^722273441 is an apocalyptic number.

It is an amenable number.

722273441 is a deficient number, since it is larger than the sum of its proper divisors (46715143).

722273441 is a wasteful number, since it uses less digits than its factorization.

722273441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234931.

The product of its digits is 18816, while the sum is 32.

The square root of 722273441 is about 26875.1454135601. The cubic root of 722273441 is about 897.2233108648.

The spelling of 722273441 in words is "seven hundred twenty-two million, two hundred seventy-three thousand, four hundred forty-one".