23204420 has 12 divisors (see below), whose sum is σ = 48729324. Its totient is φ = 9281760.

The previous prime is 23204411. The next prime is 23204429. The reversal of 23204420 is 2440232.

It is an interprime number because it is at equal distance from previous prime (23204411) and next prime (23204429).

It can be written as a sum of positive squares in 2 ways, for example, as 5345344 + 17859076 = 2312^2 + 4226^2 .

It is not an unprimeable number, because it can be changed into a prime (23204429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580091 + ... + 580130.

It is an arithmetic number, because the mean of its divisors is an integer number (4060777).

Almost surely, 2^23204420 is an apocalyptic number.

23204420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23204420 is an abundant number, since it is smaller than the sum of its proper divisors (25524904).

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

23204420 is a wasteful number, since it uses less digits than its factorization.

23204420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160230 (or 1160228 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 23204420 is about 4817.0966359416. The cubic root of 23204420 is about 285.2267406655.

Adding to 23204420 its reverse (2440232), we get a palindrome (25644652).

The spelling of 23204420 in words is "twenty-three million, two hundred four thousand, four hundred twenty".