23220401424 has 60 divisors (see below), whose sum is σ = 65935081968. Its totient is φ = 7036483520.

The previous prime is 23220401423. The next prime is 23220401441. The reversal of 23220401424 is 42410402232.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 23220401394 and 23220401403.

It is not an unprimeable number, because it can be changed into a prime (23220401423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1993194 + ... + 2004809.

Almost surely, 2^23220401424 is an apocalyptic number.

23220401424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23220401424 is an abundant number, since it is smaller than the sum of its proper divisors (42714680544).

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

23220401424 is a wasteful number, since it uses less digits than its factorization.

23220401424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3998036 (or 3998019 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 23220401424 its reverse (42410402232), we get a palindrome (65630803656).

The spelling of 23220401424 in words is "twenty-three billion, two hundred twenty million, four hundred one thousand, four hundred twenty-four".