2189538038 has 8 divisors (see below), whose sum is σ = 3427103088. Its totient is φ = 1047170344.

The previous prime is 2189538037. The next prime is 2189538049. The reversal of 2189538038 is 8308359812.

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

It is a junction number, because it is equal to n+sod(n) for n = 2189537983 and 2189538001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189538037) 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, 23799281 + ... + 23799372.

It is an arithmetic number, because the mean of its divisors is an integer number (428387886).

Almost surely, 2^2189538038 is an apocalyptic number.

2189538038 is a deficient number, since it is larger than the sum of its proper divisors (1237565050).

2189538038 is a wasteful number, since it uses less digits than its factorization.

2189538038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47598678.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 2189538038 is about 46792.4998049901. The cubic root of 2189538038 is about 1298.5265431966.

The spelling of 2189538038 in words is "two billion, one hundred eighty-nine million, five hundred thirty-eight thousand, thirty-eight".