233812881 has 12 divisors (see below), whose sum is σ = 348624640. Its totient is φ = 150846840.

The previous prime is 233812853. The next prime is 233812889. The reversal of 233812881 is 188218332.

It is not a de Polignac number, because 233812881 - 2¹⁷ = 233681809 is a prime.

It is a super-2 number, since 2×233812881² = 109336926643040322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233812889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418741 + ... + 419298.

Almost surely, 2^233812881 is an apocalyptic number.

It is an amenable number.

233812881 is a deficient number, since it is larger than the sum of its proper divisors (114811759).

233812881 is a wasteful number, since it uses less digits than its factorization.

233812881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838076 (or 838073 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 233812881 is about 15290.9411417349. The cubic root of 233812881 is about 616.0597156718.

It can be divided in two parts, 23381 and 2881, that added together give a palindrome (26262).

The spelling of 233812881 in words is "two hundred thirty-three million, eight hundred twelve thousand, eight hundred eighty-one".