23133738 has 8 divisors (see below), whose sum is σ = 46267488. Its totient is φ = 7711244.

The previous prime is 23133727. The next prime is 23133739. The reversal of 23133738 is 83733132.

It is a sphenic number, since it is the product of 3 distinct primes.

23133738 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (23133739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1927806 + ... + 1927817.

It is an arithmetic number, because the mean of its divisors is an integer number (5783436).

Almost surely, 2^23133738 is an apocalyptic number.

23133738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23133738 is a wasteful number, since it uses less digits than its factorization.

23133738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855628.

The product of its digits is 9072, while the sum is 30.

The square root of 23133738 is about 4809.7544635875. The cubic root of 23133738 is about 284.9368404208.

It can be divided in two parts, 23133 and 738, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 23133738 in words is "twenty-three million, one hundred thirty-three thousand, seven hundred thirty-eight".