23180000 has 120 divisors (see below), whose sum is σ = 61011720. Its totient is φ = 8640000.

The previous prime is 23179997. The next prime is 23180011. The reversal of 23180000 is 8132.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 379970 + ... + 380030.

It is an arithmetic number, because the mean of its divisors is an integer number (508431).

Almost surely, 2^23180000 is an apocalyptic number.

23180000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23180000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30505860).

23180000 is an abundant number, since it is smaller than the sum of its proper divisors (37831720).

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

23180000 is an equidigital number, since it uses as much as digits as its factorization.

23180000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 23180000 is about 4814.5612468843. The cubic root of 23180000 is about 285.1266493638.

Adding to 23180000 its reverse (8132), we get a palindrome (23188132).

The spelling of 23180000 in words is "twenty-three million, one hundred eighty thousand".