720223750 has 20 divisors (see below), whose sum is σ = 1349989740. Its totient is φ = 288089000.

The previous prime is 720223733. The next prime is 720223781. The reversal of 720223750 is 57322027.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 286840 + ... + 289339.

It is an arithmetic number, because the mean of its divisors is an integer number (67499487).

Almost surely, 2^720223750 is an apocalyptic number.

720223750 is a deficient number, since it is larger than the sum of its proper divisors (629765990).

720223750 is an equidigital number, since it uses as much as digits as its factorization.

720223750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576201 (or 576186 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 720223750 is about 26836.9847412111. The cubic root of 720223750 is about 896.3737836134.

Adding to 720223750 its reverse (57322027), we get a palindrome (777545777).

The spelling of 720223750 in words is "seven hundred twenty million, two hundred twenty-three thousand, seven hundred fifty".