244172881 has 4 divisors (see below), whose sum is σ = 244289700. Its totient is φ = 244056064.

The previous prime is 244172869. The next prime is 244172893. The reversal of 244172881 is 188271442.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (244172869) and next prime (244172893).

It can be written as a sum of positive squares in 2 ways, for example, as 29257281 + 214915600 = 5409^2 + 14660^2 .

It is a cyclic number.

It is not a de Polignac number, because 244172881 - 2¹³ = 244164689 is a prime.

It is a super-2 number, since 2×244172881² = 119240791631680322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 244172881.

It is not an unprimeable number, because it can be changed into a prime (244172861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55216 + ... + 59473.

It is an arithmetic number, because the mean of its divisors is an integer number (61072425).

Almost surely, 2^244172881 is an apocalyptic number.

It is an amenable number.

244172881 is a deficient number, since it is larger than the sum of its proper divisors (116819).

244172881 is a wasteful number, since it uses less digits than its factorization.

244172881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116818.

The product of its digits is 28672, while the sum is 37.

The square root of 244172881 is about 15626.0321579088. The cubic root of 244172881 is about 625.0275239079.

The spelling of 244172881 in words is "two hundred forty-four million, one hundred seventy-two thousand, eight hundred eighty-one".