2189063238 has 8 divisors (see below), whose sum is σ = 4378126488. Its totient is φ = 729687744.

The previous prime is 2189063237. The next prime is 2189063251. The reversal of 2189063238 is 8323609812.

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

2189063238 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2189063238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189063237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182421931 + ... + 182421942.

It is an arithmetic number, because the mean of its divisors is an integer number (547265811).

Almost surely, 2^2189063238 is an apocalyptic number.

2189063238 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.

2189063238 is a wasteful number, since it uses less digits than its factorization.

2189063238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364843878.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 2189063238 is about 46787.4260672673. The cubic root of 2189063238 is about 1298.4326748458.

The spelling of 2189063238 in words is "two billion, one hundred eighty-nine million, sixty-three thousand, two hundred thirty-eight".