2239888 has 30 divisors (see below), whose sum is σ = 5050086. Its totient is φ = 959616.

The previous prime is 2239883. The next prime is 2239889. The reversal of 2239888 is 8889322.

It can be written as a sum of positive squares in only one way, i.e., 2039184 + 200704 = 1428^2 + 448^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2239888.

It is not an unprimeable number, because it can be changed into a prime (2239883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 645 + ... + 2212.

2^2239888 is an apocalyptic number.

2239888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2239888 is an abundant number, since it is smaller than the sum of its proper divisors (2810198).

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

2239888 is a wasteful number, since it uses less digits than its factorization.

2239888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879 (or 2866 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 2239888 is about 1496.6255376680. The cubic root of 2239888 is about 130.8404716603.

The spelling of 2239888 in words is "two million, two hundred thirty-nine thousand, eight hundred eighty-eight".