4044022000 has 40 divisors (see below), whose sum is σ = 9778450032. Its totient is φ = 1617608000.

The previous prime is 4044021973. The next prime is 4044022001. The reversal of 4044022000 is 2204404.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×4044022000² = 32708227872968000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4044022001) 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, 1009006 + ... + 1013005.

Almost surely, 2^4044022000 is an apocalyptic number.

4044022000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4044022000 is an abundant number, since it is smaller than the sum of its proper divisors (5734428032).

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

4044022000 is a wasteful number, since it uses less digits than its factorization.

4044022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022034 (or 2022018 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4044022000 is about 63592.6253586059. The cubic root of 4044022000 is about 1593.2031993217.

Adding to 4044022000 its reverse (2204404), we get a palindrome (4046226404).

The spelling of 4044022000 in words is "four billion, forty-four million, twenty-two thousand".