23320424 has 16 divisors (see below), whose sum is σ = 44551620. Its totient is φ = 11440000.

The previous prime is 23320421. The next prime is 23320433. The reversal of 23320424 is 42402332.

It can be written as a sum of positive squares in 2 ways, for example, as 22259524 + 1060900 = 4718^2 + 1030^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23320396 and 23320405.

It is not an unprimeable number, because it can be changed into a prime (23320421) 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, 27077 + ... + 27924.

Almost surely, 2^23320424 is an apocalyptic number.

It is an amenable number.

23320424 is a deficient number, since it is larger than the sum of its proper divisors (21231196).

23320424 is a wasteful number, since it uses less digits than its factorization.

23320424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55060 (or 55056 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 23320424 is about 4829.1224875747. The cubic root of 23320424 is about 285.7012545485.

Adding to 23320424 its reverse (42402332), we get a palindrome (65722756).

The spelling of 23320424 in words is "twenty-three million, three hundred twenty thousand, four hundred twenty-four".