23166738 has 48 divisors (see below), whose sum is σ = 60390720. Its totient is φ = 6270048.

The previous prime is 23166721. The next prime is 23166739. The reversal of 23166738 is 83766132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23166739) 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 23 ways as a sum of consecutive naturals, for example, 2445 + ... + 7232.

It is an arithmetic number, because the mean of its divisors is an integer number (1258140).

Almost surely, 2^23166738 is an apocalyptic number.

23166738 is an abundant number, since it is smaller than the sum of its proper divisors (37223982).

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

23166738 is a wasteful number, since it uses less digits than its factorization.

23166738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9711 (or 9708 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 23166738 is about 4813.1837696061. The cubic root of 23166738 is about 285.0722623779.

The spelling of 23166738 in words is "twenty-three million, one hundred sixty-six thousand, seven hundred thirty-eight".