4422423640 has 32 divisors (see below), whose sum is σ = 10162169280. Its totient is φ = 1731331072.

The previous prime is 4422423587. The next prime is 4422423661. The reversal of 4422423640 is 463242244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174297 + ... + 1178056.

It is an arithmetic number, because the mean of its divisors is an integer number (317567790).

Almost surely, 2^4422423640 is an apocalyptic number.

4422423640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4422423640 is an abundant number, since it is smaller than the sum of its proper divisors (5739745640).

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

4422423640 is a wasteful number, since it uses less digits than its factorization.

4422423640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352411 (or 2352407 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

The square root of 4422423640 is about 66501.3055510943. The cubic root of 4422423640 is about 1641.4214871665.

Adding to 4422423640 its reverse (463242244), we get a palindrome (4885665884).

The spelling of 4422423640 in words is "four billion, four hundred twenty-two million, four hundred twenty-three thousand, six hundred forty".