2236864 has 28 divisors (see below), whose sum is σ = 5073904. Its totient is φ = 958464.

The previous prime is 2236831. The next prime is 2236873. The reversal of 2236864 is 4686322.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2049 + ... + 2944.

2^2236864 is an apocalyptic number.

It is an amenable number.

2236864 is an abundant number, since it is smaller than the sum of its proper divisors (2837040).

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

2236864 is an equidigital number, since it uses as much as digits as its factorization.

2236864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012 (or 5002 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 2236864 is about 1495.6149237020. The cubic root of 2236864 is about 130.7815639863.

The spelling of 2236864 in words is "two million, two hundred thirty-six thousand, eight hundred sixty-four".