23180406 has 32 divisors (see below), whose sum is σ = 47537280. Its totient is φ = 7533504.

The previous prime is 23180387. The next prime is 23180407. The reversal of 23180406 is 60408132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23180407) 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 15 ways as a sum of consecutive naturals, for example, 44061 + ... + 44583.

It is an arithmetic number, because the mean of its divisors is an integer number (1485540).

Almost surely, 2^23180406 is an apocalyptic number.

23180406 is an abundant number, since it is smaller than the sum of its proper divisors (24356874).

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

23180406 is a wasteful number, since it uses less digits than its factorization.

23180406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 23180406 is about 4814.6034104586. The cubic root of 23180406 is about 285.1283140279.

Adding to 23180406 its reverse (60408132), we get a palindrome (83588538).

The spelling of 23180406 in words is "twenty-three million, one hundred eighty thousand, four hundred six".