23203420 has 24 divisors (see below), whose sum is σ = 49163184. Its totient is φ = 9198336.

The previous prime is 23203391. The next prime is 23203421. The reversal of 23203420 is 2430232.

It is a junction number, because it is equal to n+sod(n) for n = 23203394 and 23203403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23203421) 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, 2874 + ... + 7393.

It is an arithmetic number, because the mean of its divisors is an integer number (2048466).

Almost surely, 2^23203420 is an apocalyptic number.

23203420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23203420 is an abundant number, since it is smaller than the sum of its proper divisors (25959764).

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

23203420 is a wasteful number, since it uses less digits than its factorization.

23203420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10389 (or 10387 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 23203420 is about 4816.9928378606. The cubic root of 23203420 is about 285.2226433019. Note that the first 3 decimals are identical.

Adding to 23203420 its reverse (2430232), we get a palindrome (25633652).

The spelling of 23203420 in words is "twenty-three million, two hundred three thousand, four hundred twenty".