720214442 has 4 divisors (see below), whose sum is σ = 1080321666. Its totient is φ = 360107220.

The previous prime is 720214349. The next prime is 720214447. The reversal of 720214442 is 244412027.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 523906321 + 196308121 = 22889^2 + 14011^2 .

It is not an unprimeable number, because it can be changed into a prime (720214447) 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 as a sum of consecutive naturals, namely, 180053609 + ... + 180053612.

Almost surely, 2^720214442 is an apocalyptic number.

720214442 is a deficient number, since it is larger than the sum of its proper divisors (360107224).

720214442 is a wasteful number, since it uses less digits than its factorization.

720214442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360107223.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 720214442 is about 26836.8113232552. The cubic root of 720214442 is about 896.3699220897.

Adding to 720214442 its reverse (244412027), we get a palindrome (964626469).

The spelling of 720214442 in words is "seven hundred twenty million, two hundred fourteen thousand, four hundred forty-two".