4442427181 has 2 divisors, whose sum is σ = 4442427182. Its totient is φ = 4442427180.

The previous prime is 4442427179. The next prime is 4442427239. The reversal of 4442427181 is 1817242444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4318461225 + 123965956 = 65715^2 + 11134^2 .

It is a cyclic number.

It is not a de Polignac number, because 4442427181 - 2¹ = 4442427179 is a prime.

It is a super-2 number, since 2×4442427181² = 39470318516975213522, which contains 22 as substring.

Together with 4442427179, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4442427181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4442422181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2221213590 + 2221213591.

It is an arithmetic number, because the mean of its divisors is an integer number (2221213591).

Almost surely, 2^4442427181 is an apocalyptic number.

It is an amenable number.

4442427181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4442427181 is an equidigital number, since it uses as much as digits as its factorization.

4442427181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57344, while the sum is 37.

The square root of 4442427181 is about 66651.5354736858. The cubic root of 4442427181 is about 1643.8925952697.

The spelling of 4442427181 in words is "four billion, four hundred forty-two million, four hundred twenty-seven thousand, one hundred eighty-one".