4448981 has 4 divisors (see below), whose sum is σ = 4454700. Its totient is φ = 4443264.

The previous prime is 4448957. The next prime is 4448989. The reversal of 4448981 is 1898444.

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

It can be written as a sum of positive squares in 2 ways, for example, as 180625 + 4268356 = 425^2 + 2066^2 .

It is a cyclic number.

It is not a de Polignac number, because 4448981 - 2¹⁸ = 4186837 is a prime.

It is a super-2 number, since 2×4448981² = 39586863876722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4448989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466 + ... + 3323.

It is an arithmetic number, because the mean of its divisors is an integer number (1113675).

Almost surely, 2^4448981 is an apocalyptic number.

It is an amenable number.

4448981 is a deficient number, since it is larger than the sum of its proper divisors (5719).

4448981 is an equidigital number, since it uses as much as digits as its factorization.

4448981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718.

The product of its digits is 36864, while the sum is 38.

The square root of 4448981 is about 2109.2607709812. The cubic root of 4448981 is about 164.4700598066.

The spelling of 4448981 in words is "four million, four hundred forty-eight thousand, nine hundred eighty-one".