4022988 has 12 divisors (see below), whose sum is σ = 9387000. Its totient is φ = 1340992.

The previous prime is 4022983. The next prime is 4023001. The reversal of 4022988 is 8892204.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4022981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167613 + ... + 167636.

It is an arithmetic number, because the mean of its divisors is an integer number (782250).

Almost surely, 2^4022988 is an apocalyptic number.

It is an amenable number.

4022988 is an abundant number, since it is smaller than the sum of its proper divisors (5364012).

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

4022988 is a wasteful number, since it uses less digits than its factorization.

4022988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335256 (or 335254 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 4022988 is about 2005.7387666394. The cubic root of 4022988 is about 159.0436176368.

The spelling of 4022988 in words is "four million, twenty-two thousand, nine hundred eighty-eight".