2872220 has 24 divisors (see below), whose sum is σ = 6496224. Its totient is φ = 1060416.

The previous prime is 2872187. The next prime is 2872237. The reversal of 2872220 is 222782.

It is a happy number.

2872220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5264 + ... + 5783.

It is an arithmetic number, because the mean of its divisors is an integer number (270676).

2^2872220 is an apocalyptic number.

2872220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2872220 is an abundant number, since it is smaller than the sum of its proper divisors (3624004).

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

2872220 is a wasteful number, since it uses less digits than its factorization.

2872220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11069 (or 11067 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2872220 is about 1694.7625202370. The cubic root of 2872220 is about 142.1475026169.

The spelling of 2872220 in words is "two million, eight hundred seventy-two thousand, two hundred twenty".