720022442 has 24 divisors (see below), whose sum is σ = 1170720036. Its totient is φ = 331833024.

The previous prime is 720022439. The next prime is 720022447. The reversal of 720022442 is 244220027.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 647244481 + 72777961 = 25441^2 + 8531^2 .

It is not an unprimeable number, because it can be changed into a prime (720022447) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 13238 + ... + 40190.

Almost surely, 2^720022442 is an apocalyptic number.

720022442 is a deficient number, since it is larger than the sum of its proper divisors (450697594).

720022442 is a wasteful number, since it uses less digits than its factorization.

720022442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27030 (or 27011 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 720022442 is about 26833.2339087185. The cubic root of 720022442 is about 896.2902614078.

Adding to 720022442 its reverse (244220027), we get a palindrome (964242469).

The spelling of 720022442 in words is "seven hundred twenty million, twenty-two thousand, four hundred forty-two".