23320430 has 32 divisors (see below), whose sum is σ = 50798016. Its totient is φ = 7524864.

The previous prime is 23320421. The next prime is 23320433. The reversal of 23320430 is 3402332.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23320399 and 23320408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8609 + ... + 10988.

It is an arithmetic number, because the mean of its divisors is an integer number (1587438).

Almost surely, 2^23320430 is an apocalyptic number.

23320430 is an abundant number, since it is smaller than the sum of its proper divisors (27477586).

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

23320430 is a wasteful number, since it uses less digits than its factorization.

23320430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19628.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 23320430 is about 4829.1231088056. The cubic root of 23320430 is about 285.7012790508.

Adding to 23320430 its reverse (3402332), we get a palindrome (26722762).

The spelling of 23320430 in words is "twenty-three million, three hundred twenty thousand, four hundred thirty".