2187338 has 8 divisors (see below), whose sum is σ = 3334980. Its totient is φ = 1075680.

The previous prime is 2187331. The next prime is 2187343. The reversal of 2187338 is 8337812.

It can be written as a sum of positive squares in 2 ways, for example, as 2024929 + 162409 = 1423^2 + 403^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2187331) 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, 8843 + ... + 9086.

2^2187338 is an apocalyptic number.

2187338 is a deficient number, since it is larger than the sum of its proper divisors (1147642).

2187338 is a wasteful number, since it uses less digits than its factorization.

2187338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17992.

The product of its digits is 8064, while the sum is 32.

The square root of 2187338 is about 1478.9651787652. The cubic root of 2187338 is about 129.8091479565.

The spelling of 2187338 in words is "two million, one hundred eighty-seven thousand, three hundred thirty-eight".