23438500 has 24 divisors (see below), whose sum is σ = 51190776. Its totient is φ = 9375200.

The previous prime is 23438489. The next prime is 23438507. The reversal of 23438500 is 583432.

It can be written as a sum of positive squares in 4 ways, for example, as 5731236 + 17707264 = 2394^2 + 4208^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (23438507) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22939 + ... + 23938.

It is an arithmetic number, because the mean of its divisors is an integer number (2132949).

Almost surely, 2^23438500 is an apocalyptic number.

23438500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23438500 is an abundant number, since it is smaller than the sum of its proper divisors (27752276).

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

23438500 is a wasteful number, since it uses less digits than its factorization.

23438500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46896 (or 46884 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 23438500 is about 4841.3324612135. The cubic root of 23438500 is about 286.1826306755.

The spelling of 23438500 in words is "twenty-three million, four hundred thirty-eight thousand, five hundred".