4442944291 has 4 divisors (see below), whose sum is σ = 4462868032. Its totient is φ = 4423020552.

The previous prime is 4442944277. The next prime is 4442944321. The reversal of 4442944291 is 1924492444.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4442944291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4442944091) 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, 9961536 + ... + 9961981.

It is an arithmetic number, because the mean of its divisors is an integer number (1115717008).

Almost surely, 2^4442944291 is an apocalyptic number.

4442944291 is a deficient number, since it is larger than the sum of its proper divisors (19923741).

4442944291 is a wasteful number, since it uses less digits than its factorization.

4442944291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19923740.

The product of its digits is 331776, while the sum is 43.

The square root of 4442944291 is about 66655.4145662601. The cubic root of 4442944291 is about 1643.9563772433.

The spelling of 4442944291 in words is "four billion, four hundred forty-two million, nine hundred forty-four thousand, two hundred ninety-one".