4442981 has 4 divisors (see below), whose sum is σ = 4447200. Its totient is φ = 4438764.

The previous prime is 4442953. The next prime is 4442987. The reversal of 4442981 is 1892444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4442981 - 2⁶ = 4442917 is a prime.

It is a super-2 number, since 2×4442981² = 39480160332722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442987) 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, 950 + ... + 3128.

It is an arithmetic number, because the mean of its divisors is an integer number (1111800).

Almost surely, 2^4442981 is an apocalyptic number.

It is an amenable number.

4442981 is a deficient number, since it is larger than the sum of its proper divisors (4219).

4442981 is a wasteful number, since it uses less digits than its factorization.

4442981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218.

The product of its digits is 9216, while the sum is 32.

The square root of 4442981 is about 2107.8379918770. The cubic root of 4442981 is about 164.3960904859.

The spelling of 4442981 in words is "four million, four hundred forty-two thousand, nine hundred eighty-one".