2285864 has 16 divisors (see below), whose sum is σ = 4898400. Its totient is φ = 979632.

The previous prime is 2285863. The next prime is 2285869. The reversal of 2285864 is 4685822.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2285861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20354 + ... + 20465.

It is an arithmetic number, because the mean of its divisors is an integer number (306150).

2^2285864 is an apocalyptic number.

It is an amenable number.

2285864 is an abundant number, since it is smaller than the sum of its proper divisors (2612536).

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

2285864 is a wasteful number, since it uses less digits than its factorization.

2285864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40832 (or 40828 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 2285864 is about 1511.9074045721. The cubic root of 2285864 is about 131.7296271729.

It can be divided in two parts, 22858 and 64, that added together give a palindrome (22922).

The spelling of 2285864 in words is "two million, two hundred eighty-five thousand, eight hundred sixty-four".