4022220402 has 20 divisors (see below), whose sum is σ = 9012753486. Its totient is φ = 1340740080.

The previous prime is 4022220347. The next prime is 4022220407. The reversal of 4022220402 is 2040222204.

4022220402 is a `hidden beast` number, since 40 + 2 + 2 + 220 + 402 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3711368241 + 310852161 = 60921^2 + 17631^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (4022220407) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12414099 + ... + 12414422.

Almost surely, 2^4022220402 is an apocalyptic number.

4022220402 is an abundant number, since it is smaller than the sum of its proper divisors (4990533084).

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

4022220402 is a wasteful number, since it uses less digits than its factorization.

4022220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24828535 (or 24828526 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 4022220402 is about 63420.9776178198. The cubic root of 4022220402 is about 1590.3350166259.

Adding to 4022220402 its reverse (2040222204), we get a palindrome (6062442606).

The spelling of 4022220402 in words is "four billion, twenty-two million, two hundred twenty thousand, four hundred two".