23133444 has 24 divisors (see below), whose sum is σ = 54515328. Its totient is φ = 7634400.

The previous prime is 23133437. The next prime is 23133497. The reversal of 23133444 is 44433132.

It is a super-2 number, since 2×23133444² = 1070312462602272, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8332 + ... + 10755.

It is an arithmetic number, because the mean of its divisors is an integer number (2271472).

Almost surely, 2^23133444 is an apocalyptic number.

It is an amenable number.

23133444 is an abundant number, since it is smaller than the sum of its proper divisors (31381884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23133444 is a wasteful number, since it uses less digits than its factorization.

23133444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19195 (or 19193 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 23133444 is about 4809.7239005997. The cubic root of 23133444 is about 284.9356333557.

Adding to 23133444 its reverse (44433132), we get a palindrome (67566576).

The spelling of 23133444 in words is "twenty-three million, one hundred thirty-three thousand, four hundred forty-four".