2239564 has 12 divisors (see below), whose sum is σ = 4045888. Its totient is φ = 1083600.

The previous prime is 2239561. The next prime is 2239577. The reversal of 2239564 is 4659322.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (2239561) 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, 8907 + ... + 9154.

2^2239564 is an apocalyptic number.

It is an amenable number.

2239564 is a deficient number, since it is larger than the sum of its proper divisors (1806324).

2239564 is a wasteful number, since it uses less digits than its factorization.

2239564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18096 (or 18094 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 2239564 is about 1496.5172902443. The cubic root of 2239564 is about 130.8341626608.

The spelling of 2239564 in words is "two million, two hundred thirty-nine thousand, five hundred sixty-four".