2238544 has 80 divisors (see below), whose sum is σ = 5713920. Its totient is φ = 823680.

The previous prime is 2238529. The next prime is 2238557. The reversal of 2238544 is 4458322.

It is a super-2 number, since 2×2238544² = 10022158479872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a d-powerful number, because it can be written as 2⁹ + 2¹¹ + 3⁹ + 8 + 5⁹ + 4⁵ + 4⁹ .

Its product of digits (7680) is a multiple of the sum of its prime factors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28297 + ... + 28375.

It is an arithmetic number, because the mean of its divisors is an integer number (71424).

2^2238544 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 2238544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2856960).

2238544 is an abundant number, since it is smaller than the sum of its proper divisors (3475376).

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

2238544 is a wasteful number, since it uses less digits than its factorization.

2238544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 122 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 2238544 is about 1496.1764601811. The cubic root of 2238544 is about 130.8142970216.

The spelling of 2238544 in words is "two million, two hundred thirty-eight thousand, five hundred forty-four".