233828491 has 16 divisors (see below), whose sum is σ = 256937184. Its totient is φ = 211497984.

The previous prime is 233828473. The next prime is 233828501. The reversal of 233828491 is 194828332.

It is a cyclic number.

It is not a de Polignac number, because 233828491 - 2¹¹ = 233826443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233828401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134061 + ... + 135793.

It is an arithmetic number, because the mean of its divisors is an integer number (16058574).

Almost surely, 2^233828491 is an apocalyptic number.

233828491 is a deficient number, since it is larger than the sum of its proper divisors (23108693).

233828491 is a wasteful number, since it uses less digits than its factorization.

233828491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950.

The product of its digits is 82944, while the sum is 40.

The square root of 233828491 is about 15291.4515661529. The cubic root of 233828491 is about 616.0734253216.

The spelling of 233828491 in words is "two hundred thirty-three million, eight hundred twenty-eight thousand, four hundred ninety-one".