4442644442 has 32 divisors (see below), whose sum is σ = 7472725632. Its totient is φ = 1969887744.

The previous prime is 4442644433. The next prime is 4442644487. The reversal of 4442644442 is 2444462444.

It is a junction number, because it is equal to n+sod(n) for n = 4442644396 and 4442644405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9998 + ... + 94790.

It is an arithmetic number, because the mean of its divisors is an integer number (233522676).

Almost surely, 2^4442644442 is an apocalyptic number.

4442644442 is a deficient number, since it is larger than the sum of its proper divisors (3030081190).

4442644442 is a wasteful number, since it uses less digits than its factorization.

4442644442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84902.

The product of its digits is 393216, while the sum is 38.

The square root of 4442644442 is about 66653.1652811778. The cubic root of 4442644442 is about 1643.9193935276.

The spelling of 4442644442 in words is "four billion, four hundred forty-two million, six hundred forty-four thousand, four hundred forty-two".