23403500 has 24 divisors (see below), whose sum is σ = 51114336. Its totient is φ = 9361200.

The previous prime is 23403467. The next prime is 23403503. The reversal of 23403500 is 530432.

It is not an unprimeable number, because it can be changed into a prime (23403503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22904 + ... + 23903.

It is an arithmetic number, because the mean of its divisors is an integer number (2129764).

Almost surely, 2^23403500 is an apocalyptic number.

23403500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23403500 is an abundant number, since it is smaller than the sum of its proper divisors (27710836).

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

23403500 is a wasteful number, since it uses less digits than its factorization.

23403500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46826 (or 46814 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 23403500 is about 4837.7164034284. The cubic root of 23403500 is about 286.0401104355.

Adding to 23403500 its reverse (530432), we get a palindrome (23933932).

The spelling of 23403500 in words is "twenty-three million, four hundred three thousand, five hundred".