4005044022 has 64 divisors (see below), whose sum is σ = 9219538944. Its totient is φ = 1136190240.

The previous prime is 4005044011. The next prime is 4005044023. The reversal of 4005044022 is 2204405004.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 4005044022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4005044023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4937997 + ... + 4938807.

It is an arithmetic number, because the mean of its divisors is an integer number (144055296).

Almost surely, 2^4005044022 is an apocalyptic number.

4005044022 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4005044022 is an abundant number, since it is smaller than the sum of its proper divisors (5214494922).

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

4005044022 is a wasteful number, since it uses less digits than its factorization.

4005044022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 4005044022 is about 63285.4171353875. The cubic root of 4005044022 is about 1588.0680121856.

Adding to 4005044022 its reverse (2204405004), we get a palindrome (6209449026).

The spelling of 4005044022 in words is "four billion, five million, forty-four thousand, twenty-two".