233838919 has 4 divisors (see below), whose sum is σ = 241902360. Its totient is φ = 225775480.

The previous prime is 233838887. The next prime is 233838991. The reversal of 233838919 is 919838332.

233838919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 233838919 - 2⁵ = 233838887 is a prime.

It is a super-2 number, since 2×233838919² = 109361280078177122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233838419) 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, 4031677 + ... + 4031734.

It is an arithmetic number, because the mean of its divisors is an integer number (60475590).

Almost surely, 2^233838919 is an apocalyptic number.

233838919 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

233838919 is a deficient number, since it is larger than the sum of its proper divisors (8063441).

233838919 is an equidigital number, since it uses as much as digits as its factorization.

233838919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8063440.

The product of its digits is 279936, while the sum is 46.

The square root of 233838919 is about 15291.7925371750. The cubic root of 233838919 is about 616.0825834844.

The spelling of 233838919 in words is "two hundred thirty-three million, eight hundred thirty-eight thousand, nine hundred nineteen".