2238816 has 24 divisors (see below), whose sum is σ = 5877144. Its totient is φ = 746240.

The previous prime is 2238811. The next prime is 2238823. The reversal of 2238816 is 6188322.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11565 + ... + 11756.

It is an arithmetic number, because the mean of its divisors is an integer number (244881).

2^2238816 is an apocalyptic number.

It is an amenable number.

2238816 is an abundant number, since it is smaller than the sum of its proper divisors (3638328).

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

2238816 is a wasteful number, since it uses less digits than its factorization.

2238816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23334 (or 23326 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 2238816 is about 1496.2673557891. The cubic root of 2238816 is about 130.8195951154.

The spelling of 2238816 in words is "two million, two hundred thirty-eight thousand, eight hundred sixteen".