2189238 has 8 divisors (see below), whose sum is σ = 4378488. Its totient is φ = 729744.

The previous prime is 2189227. The next prime is 2189249. The reversal of 2189238 is 8329812.

It is an interprime number because it is at equal distance from previous prime (2189227) and next prime (2189249).

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

2189238 is an admirable number.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2189199 and 2189208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182431 + ... + 182442.

It is an arithmetic number, because the mean of its divisors is an integer number (547311).

2^2189238 is an apocalyptic number.

2189238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2189238 is a wasteful number, since it uses less digits than its factorization.

2189238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364878.

The product of its digits is 6912, while the sum is 33.

The square root of 2189238 is about 1479.6073803547. The cubic root of 2189238 is about 129.8467227015.

The spelling of 2189238 in words is "two million, one hundred eighty-nine thousand, two hundred thirty-eight".