4022206640 has 20 divisors (see below), whose sum is σ = 9351630624. Its totient is φ = 1608882624.

The previous prime is 4022206621. The next prime is 4022206663. The reversal of 4022206640 is 466022204.

4022206640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25138712 + ... + 25138871.

Almost surely, 2^4022206640 is an apocalyptic number.

4022206640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4022206640 is an abundant number, since it is smaller than the sum of its proper divisors (5329423984).

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

4022206640 is a wasteful number, since it uses less digits than its factorization.

4022206640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50277596 (or 50277590 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 4022206640 is about 63420.8691205032. The cubic root of 4022206640 is about 1590.3332028503. Note that the first 3 decimals are identical.

Adding to 4022206640 its reverse (466022204), we get a palindrome (4488228844).

The spelling of 4022206640 in words is "four billion, twenty-two million, two hundred six thousand, six hundred forty".