4220140 has 12 divisors (see below), whose sum is σ = 8862336. Its totient is φ = 1688048.

The previous prime is 4220137. The next prime is 4220141. The reversal of 4220140 is 410224.

It is a self number, because there is not a number n which added to its sum of digits gives 4220140.

It is not an unprimeable number, because it can be changed into a prime (4220141) 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, 105484 + ... + 105523.

It is an arithmetic number, because the mean of its divisors is an integer number (738528).

Almost surely, 2^4220140 is an apocalyptic number.

It is an amenable number.

4220140 is an abundant number, since it is smaller than the sum of its proper divisors (4642196).

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

4220140 is a wasteful number, since it uses less digits than its factorization.

4220140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211016 (or 211014 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 4220140 is about 2054.2979336016. The cubic root of 4220140 is about 161.6003459621.

Adding to 4220140 its reverse (410224), we get a palindrome (4630364).

The spelling of 4220140 in words is "four million, two hundred twenty thousand, one hundred forty".