4044442000 has 80 divisors (see below), whose sum is σ = 9857083392. Its totient is φ = 1604937600.

The previous prime is 4044441977. The next prime is 4044442019. The reversal of 4044442000 is 2444404.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×4044442000² = 32715022182728000000, which contains 22 as substring.

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, 246039 + ... + 261961.

Almost surely, 2^4044442000 is an apocalyptic number.

4044442000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4044442000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4928541696).

4044442000 is an abundant number, since it is smaller than the sum of its proper divisors (5812641392).

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

4044442000 is a wasteful number, since it uses less digits than its factorization.

4044442000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16073 (or 16057 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 4044442000 is about 63595.9275425715. The cubic root of 4044442000 is about 1593.2583525149.

Adding to 4044442000 its reverse (2444404), we get a palindrome (4046886404).

The spelling of 4044442000 in words is "four billion, forty-four million, four hundred forty-two thousand".