44422281 has 6 divisors (see below), whose sum is σ = 64165530. Its totient is φ = 29614848.

The previous prime is 44422277. The next prime is 44422297. The reversal of 44422281 is 18222444.

It can be written as a sum of positive squares in only one way, i.e., 44156025 + 266256 = 6645^2 + 516^2 .

It is not a de Polignac number, because 44422281 - 2² = 44422277 is a prime.

It is a super-2 number, since 2×44422281² = 3946678098485922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44422201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2467896 + ... + 2467913.

It is an arithmetic number, because the mean of its divisors is an integer number (10694255).

Almost surely, 2^44422281 is an apocalyptic number.

It is an amenable number.

44422281 is a deficient number, since it is larger than the sum of its proper divisors (19743249).

44422281 is a wasteful number, since it uses less digits than its factorization.

44422281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4935815 (or 4935812 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 44422281 is about 6665.0042010489. The cubic root of 44422281 is about 354.1606328353.

The spelling of 44422281 in words is "forty-four million, four hundred twenty-two thousand, two hundred eighty-one".