2239956 has 36 divisors (see below), whose sum is σ = 5797792. Its totient is φ = 728784.

The previous prime is 2239949. The next prime is 2239957. The reversal of 2239956 is 6599322.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 2 + 2³ + 3⁵ + 9² + 9⁴ + 5⁹ + 6⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 2239956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 825 + ... + 2271.

2^2239956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2239956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2898896).

2239956 is an abundant number, since it is smaller than the sum of its proper divisors (3557836).

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

2239956 is a wasteful number, since it uses less digits than its factorization.

2239956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 1495 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 2239956 is about 1496.6482552691. The cubic root of 2239956 is about 130.8417956941.

The spelling of 2239956 in words is "two million, two hundred thirty-nine thousand, nine hundred fifty-six".