2184138 has 32 divisors (see below), whose sum is σ = 5296320. Its totient is φ = 661680.

The previous prime is 2184131. The next prime is 2184151. The reversal of 2184138 is 8314812.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2184131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1245 + ... + 2432.

It is an arithmetic number, because the mean of its divisors is an integer number (165510).

2^2184138 is an apocalyptic number.

2184138 is an abundant number, since it is smaller than the sum of its proper divisors (3112182).

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

2184138 is a wasteful number, since it uses less digits than its factorization.

2184138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699 (or 3693 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 2184138 is about 1477.8829452971. The cubic root of 2184138 is about 129.7458149607.

It can be divided in two parts, 218 and 4138, that added together give a square (4356 = 66²).

The spelling of 2184138 in words is "two million, one hundred eighty-four thousand, one hundred thirty-eight".