722658441 has 8 divisors (see below), whose sum is σ = 963750784. Its totient is φ = 481669200.

The previous prime is 722658437. The next prime is 722658451. The reversal of 722658441 is 144856227.

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

It is not a de Polignac number, because 722658441 - 2² = 722658437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722658441.

It is not an unprimeable number, because it can be changed into a prime (722658451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7585 + ... + 38766.

It is an arithmetic number, because the mean of its divisors is an integer number (120468848).

Almost surely, 2^722658441 is an apocalyptic number.

It is an amenable number.

722658441 is a deficient number, since it is larger than the sum of its proper divisors (241092343).

722658441 is a wasteful number, since it uses less digits than its factorization.

722658441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51551.

The product of its digits is 107520, while the sum is 39.

The square root of 722658441 is about 26882.3072112496. The cubic root of 722658441 is about 897.3827009227.

The spelling of 722658441 in words is "seven hundred twenty-two million, six hundred fifty-eight thousand, four hundred forty-one".