233109638 has 4 divisors (see below), whose sum is σ = 349664460. Its totient is φ = 116554818.

The previous prime is 233109637. The next prime is 233109673. The reversal of 233109638 is 836901332.

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

It is a junction number, because it is equal to n+sod(n) for n = 233109598 and 233109607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233109631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58277408 + ... + 58277411.

It is an arithmetic number, because the mean of its divisors is an integer number (87416115).

Almost surely, 2^233109638 is an apocalyptic number.

233109638 is a deficient number, since it is larger than the sum of its proper divisors (116554822).

233109638 is a wasteful number, since it uses less digits than its factorization.

233109638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116554821.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 233109638 is about 15267.9284121979. The cubic root of 233109638 is about 615.4414509550.

The spelling of 233109638 in words is "two hundred thirty-three million, one hundred nine thousand, six hundred thirty-eight".