23033381 has 12 divisors (see below), whose sum is σ = 26906508. Its totient is φ = 19660032.

The previous prime is 23033369. The next prime is 23033401. The reversal of 23033381 is 18333032.

It can be written as a sum of positive squares in 2 ways, for example, as 14182756 + 8850625 = 3766^2 + 2975^2 .

It is not a de Polignac number, because 23033381 - 2¹⁰ = 23032357 is a prime.

It is a super-2 number, since 2×23033381² = 1061073280582322, 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 (23033321) 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, 12725 + ... + 14421.

It is an arithmetic number, because the mean of its divisors is an integer number (2242209).

Almost surely, 2^23033381 is an apocalyptic number.

It is an amenable number.

23033381 is a deficient number, since it is larger than the sum of its proper divisors (3873127).

23033381 is a wasteful number, since it uses less digits than its factorization.

23033381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 23033381 is about 4799.3104713073. The cubic root of 23033381 is about 284.5242128179.

The spelling of 23033381 in words is "twenty-three million, thirty-three thousand, three hundred eighty-one".