4006444422 has 8 divisors (see below), whose sum is σ = 8012888856. Its totient is φ = 1335481472.

The previous prime is 4006444391. The next prime is 4006444441. The reversal of 4006444422 is 2244446004.

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

4006444422 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 4006444422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333870363 + ... + 333870374.

It is an arithmetic number, because the mean of its divisors is an integer number (1001611107).

Almost surely, 2^4006444422 is an apocalyptic number.

4006444422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4006444422 is a wasteful number, since it uses less digits than its factorization.

4006444422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667740742.

The product of its (nonzero) digits is 24576, while the sum is 30.

The square root of 4006444422 is about 63296.4803286881. The cubic root of 4006444422 is about 1588.2530847488.

The spelling of 4006444422 in words is "four billion, six million, four hundred forty-four thousand, four hundred twenty-two".