23426320 has 40 divisors (see below), whose sum is σ = 55014336. Its totient is φ = 9276288.

The previous prime is 23426251. The next prime is 23426327. The reversal of 23426320 is 2362432.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 23426291 and 23426300.

It is not an unprimeable number, because it can be changed into a prime (23426327) 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, 6819 + ... + 9661.

Almost surely, 2^23426320 is an apocalyptic number.

23426320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23426320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27507168).

23426320 is an abundant number, since it is smaller than the sum of its proper divisors (31588016).

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

23426320 is a wasteful number, since it uses less digits than its factorization.

23426320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959 (or 2953 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 23426320 is about 4840.0743795938. The cubic root of 23426320 is about 286.1330497381.

Adding to 23426320 its reverse (2362432), we get a palindrome (25788752).

The spelling of 23426320 in words is "twenty-three million, four hundred twenty-six thousand, three hundred twenty".