2285988 has 24 divisors (see below), whose sum is σ = 5366592. Its totient is φ = 757344.

The previous prime is 2285981. The next prime is 2286013. The reversal of 2285988 is 8895822.

It is a super-2 number, since 2×2285988² = 10451482272288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2285981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1881 + ... + 2847.

It is an arithmetic number, because the mean of its divisors is an integer number (223608).

2^2285988 is an apocalyptic number.

It is an amenable number.

2285988 is an abundant number, since it is smaller than the sum of its proper divisors (3080604).

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

2285988 is a wasteful number, since it uses less digits than its factorization.

2285988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171 (or 1169 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 2285988 is about 1511.9484118183. The cubic root of 2285988 is about 131.7320090846.

It can be divided in two parts, 228 and 5988, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 2285988 in words is "two million, two hundred eighty-five thousand, nine hundred eighty-eight".