4002222 has 24 divisors (see below), whose sum is σ = 9311976. Its totient is φ = 1143408.

The previous prime is 4002221. The next prime is 4002223. The reversal of 4002222 is 2222004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4002221) and next prime (4002223).

4002222 is a modest number, since divided by 2222 gives 400 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 4002198 and 4002207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6513 + ... + 7100.

It is an arithmetic number, because the mean of its divisors is an integer number (387999).

Almost surely, 2^4002222 is an apocalyptic number.

4002222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4002222 is an abundant number, since it is smaller than the sum of its proper divisors (5309754).

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

4002222 is a wasteful number, since it uses less digits than its factorization.

4002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13632 (or 13625 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 4002222 is about 2000.5554228764. Note that the first 3 decimals coincide. The cubic root of 4002222 is about 158.7694931320.

Adding to 4002222 its reverse (2222004), we get a palindrome (6224226).

It can be divided in two parts, 4002 and 222, that added together give a palindrome (4224).

The spelling of 4002222 in words is "four million, two thousand, two hundred twenty-two".