2239868 has 6 divisors (see below), whose sum is σ = 3919776. Its totient is φ = 1119932.

The previous prime is 2239847. The next prime is 2239883. The reversal of 2239868 is 8689322.

It is a happy number.

2239868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 2¹¹ + 2²¹ + 3⁷ + 9⁵ + 8 + 6⁶ + 8⁵ .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279980 + ... + 279987.

It is an arithmetic number, because the mean of its divisors is an integer number (653296).

2^2239868 is an apocalyptic number.

It is an amenable number.

2239868 is a deficient number, since it is larger than the sum of its proper divisors (1679908).

2239868 is a wasteful number, since it uses less digits than its factorization.

2239868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559971 (or 559969 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 2239868 is about 1496.6188559550. The cubic root of 2239868 is about 130.8400822335.

The spelling of 2239868 in words is "two million, two hundred thirty-nine thousand, eight hundred sixty-eight".