4040222064 has 80 divisors (see below), whose sum is σ = 10853114880. Its totient is φ = 1293719040.

The previous prime is 4040222059. The next prime is 4040222077. The reversal of 4040222064 is 4602220404.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 193947 + ... + 213765.

It is an arithmetic number, because the mean of its divisors is an integer number (135663936).

Almost surely, 2^4040222064 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 4040222064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5426557440).

4040222064 is an abundant number, since it is smaller than the sum of its proper divisors (6812892816).

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

4040222064 is a wasteful number, since it uses less digits than its factorization.

4040222064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19998 (or 19992 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 4040222064 is about 63562.7411617844. The cubic root of 4040222064 is about 1592.7040289905.

Adding to 4040222064 its reverse (4602220404), we get a palindrome (8642442468).

The spelling of 4040222064 in words is "four billion, forty million, two hundred twenty-two thousand, sixty-four".