720289722 has 16 divisors (see below), whose sum is σ = 1475716032. Its totient is φ = 234240480.

The previous prime is 720289679. The next prime is 720289723. The reversal of 720289722 is 227982027.

It is not an unprimeable number, because it can be changed into a prime (720289723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463758 + ... + 1464249.

It is an arithmetic number, because the mean of its divisors is an integer number (92232252).

Almost surely, 2^720289722 is an apocalyptic number.

720289722 is an abundant number, since it is smaller than the sum of its proper divisors (755426310).

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

720289722 is a wasteful number, since it uses less digits than its factorization.

720289722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928053.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 720289722 is about 26838.2138377352. The cubic root of 720289722 is about 896.4011518517.

The spelling of 720289722 in words is "seven hundred twenty million, two hundred eighty-nine thousand, seven hundred twenty-two".