4442167638 has 12 divisors (see below), whose sum is σ = 9624696588. Its totient is φ = 1480722540.

The previous prime is 4442167627. The next prime is 4442167657. The reversal of 4442167638 is 8367612444.

4442167638 is a `hidden beast` number, since 4 + 4 + 4 + 2 + 1 + 6 + 7 + 638 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4442167593 and 4442167602.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 123393528 + ... + 123393563.

It is an arithmetic number, because the mean of its divisors is an integer number (802058049).

Almost surely, 2^4442167638 is an apocalyptic number.

4442167638 is an abundant number, since it is smaller than the sum of its proper divisors (5182528950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4442167638 is a wasteful number, since it uses less digits than its factorization.

4442167638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246787099 (or 246787096 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 4442167638 is about 66649.5884308373. The cubic root of 4442167638 is about 1643.8605805544.

The spelling of 4442167638 in words is "four billion, four hundred forty-two million, one hundred sixty-seven thousand, six hundred thirty-eight".