4040222004 has 144 divisors (see below), whose sum is σ = 13035404928. Its totient is φ = 1065529728.

The previous prime is 4040221973. The next prime is 4040222009. The reversal of 4040222004 is 4002220404.

4040222004 is a `hidden beast` number, since 40 + 402 + 220 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040222009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65614 + ... + 111290.

Almost surely, 2^4040222004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4040222004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6517702464).

4040222004 is an abundant number, since it is smaller than the sum of its proper divisors (8995182924).

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

4040222004 is a wasteful number, since it uses less digits than its factorization.

4040222004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45716 (or 45702 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 4040222004 is about 63562.7406898098. The cubic root of 4040222004 is about 1592.7040211063.

Adding to 4040222004 its reverse (4002220404), we get a palindrome (8042442408).

The spelling of 4040222004 in words is "four billion, forty million, two hundred twenty-two thousand, four".