231789538 has 8 divisors (see below), whose sum is σ = 362801088. Its totient is φ = 110855844.

The previous prime is 231789529. The next prime is 231789541. The reversal of 231789538 is 835987132.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 5038903 = 231789538 / (2 + 3 + 1 + 7 + 8 + 9 + 5 + 3 + 8).

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, 2519406 + ... + 2519497.

It is an arithmetic number, because the mean of its divisors is an integer number (45350136).

Almost surely, 2^231789538 is an apocalyptic number.

231789538 is a deficient number, since it is larger than the sum of its proper divisors (131011550).

231789538 is a wasteful number, since it uses less digits than its factorization.

231789538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038928.

The product of its digits is 362880, while the sum is 46.

The square root of 231789538 is about 15224.6358905558. The cubic root of 231789538 is about 614.2775026176.

The spelling of 231789538 in words is "two hundred thirty-one million, seven hundred eighty-nine thousand, five hundred thirty-eight".