233223381 has 24 divisors (see below), whose sum is σ = 364553280. Its totient is φ = 148718592.

The previous prime is 233223377. The next prime is 233223383. The reversal of 233223381 is 183322332.

233223381 is a `hidden beast` number, since 2 + 3 + 322 + 338 + 1 = 666.

It is not a de Polignac number, because 233223381 - 2² = 233223377 is a prime.

It is a super-2 number, since 2×233223381² = 108786290890142322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233223383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15276 + ... + 26453.

It is an arithmetic number, because the mean of its divisors is an integer number (15189720).

Almost surely, 2^233223381 is an apocalyptic number.

It is an amenable number.

233223381 is a deficient number, since it is larger than the sum of its proper divisors (131329899).

233223381 is an equidigital number, since it uses as much as digits as its factorization.

233223381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41767 (or 41755 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 233223381 is about 15271.6528575004. The cubic root of 233223381 is about 615.5415337244.

The spelling of 233223381 in words is "two hundred thirty-three million, two hundred twenty-three thousand, three hundred eighty-one".