23406066 has 24 divisors (see below), whose sum is σ = 51546924. Its totient is φ = 7673760.

The previous prime is 23406049. The next prime is 23406091. The reversal of 23406066 is 66060432.

It can be written as a sum of positive squares in 2 ways, for example, as 23242041 + 164025 = 4821^2 + 405^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9561 + ... + 11756.

Almost surely, 2^23406066 is an apocalyptic number.

23406066 is an abundant number, since it is smaller than the sum of its proper divisors (28140858).

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

23406066 is a wasteful number, since it uses less digits than its factorization.

23406066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21386 (or 21383 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 23406066 is about 4837.9816039336. The cubic root of 23406066 is about 286.0505640300.

Adding to 23406066 its reverse (66060432), we get a palindrome (89466498).

The spelling of 23406066 in words is "twenty-three million, four hundred six thousand, sixty-six".