2869220 has 12 divisors (see below), whose sum is σ = 6025404. Its totient is φ = 1147680.

The previous prime is 2869219. The next prime is 2869241. The reversal of 2869220 is 229682.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1737124 + 1132096 = 1318^2 + 1064^2 .

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 3 ways as a sum of consecutive naturals, for example, 71711 + ... + 71750.

It is an arithmetic number, because the mean of its divisors is an integer number (502117).

2^2869220 is an apocalyptic number.

2869220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2869220 is an abundant number, since it is smaller than the sum of its proper divisors (3156184).

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

2869220 is a wasteful number, since it uses less digits than its factorization.

2869220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143470 (or 143468 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2869220 is about 1693.8772092451. The cubic root of 2869220 is about 142.0979949114.

The spelling of 2869220 in words is "two million, eight hundred sixty-nine thousand, two hundred twenty".