4244261081 has 4 divisors (see below), whose sum is σ = 4244396964. Its totient is φ = 4244125200.

The previous prime is 4244261051. The next prime is 4244261101. The reversal of 4244261081 is 1801624424.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3109177600 + 1135083481 = 55760^2 + 33691^2 .

It is a cyclic number.

It is not a de Polignac number, because 4244261081 - 2¹⁸ = 4243998937 is a prime.

It is a super-2 number, since 2×4244261081² = 36027504247382577122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4244261051) 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, 5051 + ... + 92271.

It is an arithmetic number, because the mean of its divisors is an integer number (1061099241).

Almost surely, 2^4244261081 is an apocalyptic number.

It is an amenable number.

4244261081 is a deficient number, since it is larger than the sum of its proper divisors (135883).

4244261081 is an equidigital number, since it uses as much as digits as its factorization.

4244261081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135882.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 4244261081 is about 65147.9936836124. The cubic root of 4244261081 is about 1619.0764792892.

The spelling of 4244261081 in words is "four billion, two hundred forty-four million, two hundred sixty-one thousand, eighty-one".