4444001000 has 32 divisors (see below), whose sum is σ = 10398964680. Its totient is φ = 1777600000.

The previous prime is 4444000999. The next prime is 4444001017. The reversal of 4444001000 is 1004444.

It can be written as a sum of positive squares in 4 ways, for example, as 2121339364 + 2322661636 = 46058^2 + 48194^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4444001000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2221001 + ... + 2223000.

Almost surely, 2^4444001000 is an apocalyptic number.

4444001000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444001000 is an abundant number, since it is smaller than the sum of its proper divisors (5954963680).

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

4444001000 is a wasteful number, since it uses less digits than its factorization.

4444001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4444022 (or 4444008 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 4444001000 is about 66663.3407503704. The cubic root of 4444001000 is about 1644.0866996661.

Adding to 4444001000 its reverse (1004444), we get a palindrome (4445005444).

The spelling of 4444001000 in words is "four billion, four hundred forty-four million, one thousand".