2220140 has 24 divisors (see below), whose sum is σ = 5021520. Its totient is φ = 819648.

The previous prime is 2220089. The next prime is 2220151. The reversal of 2220140 is 410222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4010 + ... + 4529.

It is an arithmetic number, because the mean of its divisors is an integer number (209230).

2^2220140 is an apocalyptic number.

2220140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220140 is an abundant number, since it is smaller than the sum of its proper divisors (2801380).

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

2220140 is a wasteful number, since it uses less digits than its factorization.

2220140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8561 (or 8559 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2220140 is about 1490.0134227583. The cubic root of 2220140 is about 130.4548171802.

Adding to 2220140 its reverse (410222), we get a palindrome (2630362).

The spelling of 2220140 in words is "two million, two hundred twenty thousand, one hundred forty".