4444640422 has 8 divisors (see below), whose sum is σ = 6667477272. Its totient is φ = 2222148000.

The previous prime is 4444640381. The next prime is 4444640423. The reversal of 4444640422 is 2240464444.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444640423) 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, 50979 + ... + 107182.

It is an arithmetic number, because the mean of its divisors is an integer number (833434659).

Almost surely, 2^4444640422 is an apocalyptic number.

4444640422 is a deficient number, since it is larger than the sum of its proper divisors (2222836850).

4444640422 is a wasteful number, since it uses less digits than its factorization.

4444640422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172214.

The product of its (nonzero) digits is 98304, while the sum is 34.

The square root of 4444640422 is about 66668.1364821307. The cubic root of 4444640422 is about 1644.1655486425.

The spelling of 4444640422 in words is "four billion, four hundred forty-four million, six hundred forty thousand, four hundred twenty-two".