4442991 has 8 divisors (see below), whose sum is σ = 6770304. Its totient is φ = 2538840.

The previous prime is 4442989. The next prime is 4442993. The reversal of 4442991 is 1992444.

It is an interprime number because it is at equal distance from previous prime (4442989) and next prime (4442993).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4442991 - 2¹ = 4442989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105765 + ... + 105806.

It is an arithmetic number, because the mean of its divisors is an integer number (846288).

Almost surely, 2^4442991 is an apocalyptic number.

4442991 is a deficient number, since it is larger than the sum of its proper divisors (2327313).

4442991 is a wasteful number, since it uses less digits than its factorization.

4442991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211581.

The product of its digits is 10368, while the sum is 33.

The square root of 4442991 is about 2107.8403639745. The cubic root of 4442991 is about 164.3962138234.

The spelling of 4442991 in words is "four million, four hundred forty-two thousand, nine hundred ninety-one".