4444000642 has 16 divisors (see below), whose sum is σ = 6706586880. Its totient is φ = 2208503952.

The previous prime is 4444000621. The next prime is 4444000643. The reversal of 4444000642 is 2460004444.

It is a self number, because there is not a number n which added to its sum of digits gives 4444000642.

It is not an unprimeable number, because it can be changed into a prime (4444000643) 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, 283609 + ... + 298867.

It is an arithmetic number, because the mean of its divisors is an integer number (419161680).

Almost surely, 2^4444000642 is an apocalyptic number.

4444000642 is a deficient number, since it is larger than the sum of its proper divisors (2262586238).

4444000642 is a wasteful number, since it uses less digits than its factorization.

4444000642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16137.

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 4444000642 is about 66663.3380652364. The cubic root of 4444000642 is about 1644.0866555180.

The spelling of 4444000642 in words is "four billion, four hundred forty-four million, six hundred forty-two", and thus it is an aban number.