2220888 has 64 divisors (see below), whose sum is σ = 5937120. Its totient is φ = 691200.

The previous prime is 2220887. The next prime is 2220893. The reversal of 2220888 is 8880222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36378 + ... + 36438.

2^2220888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2220888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2968560).

2220888 is an abundant number, since it is smaller than the sum of its proper divisors (3716232).

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

2220888 is a wasteful number, since it uses less digits than its factorization.

2220888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 2220888 is about 1490.2644060703. The cubic root of 2220888 is about 130.4694662934.

It can be divided in two parts, 22 and 20888, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 2220888 in words is "two million, two hundred twenty thousand, eight hundred eighty-eight".