720272242 has 8 divisors (see below), whose sum is σ = 1080693936. Its totient is φ = 360040932.

The previous prime is 720272237. The next prime is 720272243. The reversal of 720272242 is 242272027.

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

It is a self number, because there is not a number n which added to its sum of digits gives 720272242.

It is not an unprimeable number, because it can be changed into a prime (720272243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37728 + ... + 53515.

It is an arithmetic number, because the mean of its divisors is an integer number (135086742).

Almost surely, 2^720272242 is an apocalyptic number.

720272242 is a deficient number, since it is larger than the sum of its proper divisors (360421694).

720272242 is a wasteful number, since it uses less digits than its factorization.

720272242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95192.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 720272242 is about 26837.8881807045. Note that the first 3 decimals coincide. The cubic root of 720272242 is about 896.3939005016.

The spelling of 720272242 in words is "seven hundred twenty million, two hundred seventy-two thousand, two hundred forty-two".