2220042 has 16 divisors (see below), whose sum is σ = 4843872. Its totient is φ = 672720.

The previous prime is 2220041. The next prime is 2220059. The reversal of 2220042 is 2400222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2220041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16753 + ... + 16884.

It is an arithmetic number, because the mean of its divisors is an integer number (302742).

2^2220042 is an apocalyptic number.

2220042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2220042 is an abundant number, since it is smaller than the sum of its proper divisors (2623830).

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

2220042 is a wasteful number, since it uses less digits than its factorization.

2220042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33653.

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

The square root of 2220042 is about 1489.9805367856. The cubic root of 2220042 is about 130.4528976676.

Adding to 2220042 its reverse (2400222), we get a palindrome (4620264).

The spelling of 2220042 in words is "two million, two hundred twenty thousand, forty-two".