4222404640 has 96 divisors (see below), whose sum is σ = 10450944000. Its totient is φ = 1609939968.

The previous prime is 4222404619. The next prime is 4222404671. The reversal of 4222404640 is 464042224.

It is a junction number, because it is equal to n+sod(n) for n = 4222404599 and 4222404608.

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, 360801 + ... + 372319.

It is an arithmetic number, because the mean of its divisors is an integer number (108864000).

Almost surely, 2^4222404640 is an apocalyptic number.

4222404640 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 4222404640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5225472000).

4222404640 is an abundant number, since it is smaller than the sum of its proper divisors (6228539360).

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

4222404640 is a wasteful number, since it uses less digits than its factorization.

4222404640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11642 (or 11634 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 4222404640 is about 64980.0326254150. The cubic root of 4222404640 is about 1616.2924714896.

Adding to 4222404640 its reverse (464042224), we get a palindrome (4686446864).

The spelling of 4222404640 in words is "four billion, two hundred twenty-two million, four hundred four thousand, six hundred forty".