2239636 has 12 divisors (see below), whose sum is σ = 4479328. Its totient is φ = 959832.

The previous prime is 2239607. The next prime is 2239639. The reversal of 2239636 is 6369322.

2239636 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2239598 and 2239607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239639) 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, 39966 + ... + 40021.

2^2239636 is an apocalyptic number.

It is an amenable number.

2239636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2239636 is a wasteful number, since it uses less digits than its factorization.

2239636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79998 (or 79996 counting only the distinct ones).

The product of its digits is 11664, while the sum is 31.

The square root of 2239636 is about 1496.5413459039. The cubic root of 2239636 is about 130.8355647133.

The spelling of 2239636 in words is "two million, two hundred thirty-nine thousand, six hundred thirty-six".