720384226 has 8 divisors (see below), whose sum is σ = 1087047360. Its totient is φ = 358035108.

The previous prime is 720384199. The next prime is 720384229. The reversal of 720384226 is 622483027.

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 = 720384191 and 720384200.

It is not an unprimeable number, because it can be changed into a prime (720384229) 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 3 ways as a sum of consecutive naturals, for example, 1078086 + ... + 1078753.

It is an arithmetic number, because the mean of its divisors is an integer number (135880920).

Almost surely, 2^720384226 is an apocalyptic number.

720384226 is a deficient number, since it is larger than the sum of its proper divisors (366663134).

720384226 is a wasteful number, since it uses less digits than its factorization.

720384226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157008.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 720384226 is about 26839.9744038626. The cubic root of 720384226 is about 896.4403535726.

The spelling of 720384226 in words is "seven hundred twenty million, three hundred eighty-four thousand, two hundred twenty-six".