23326420 has 48 divisors (see below), whose sum is σ = 53519760. Its totient is φ = 8487936.

The previous prime is 23326367. The next prime is 23326421. The reversal of 23326420 is 2462332.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 248004 + 23078416 = 498^2 + 4804^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23326391 and 23326400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23326421) 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, 18366 + ... + 19594.

It is an arithmetic number, because the mean of its divisors is an integer number (1114995).

Almost surely, 2^23326420 is an apocalyptic number.

23326420 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 23326420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26759880).

23326420 is an abundant number, since it is smaller than the sum of its proper divisors (30193340).

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

23326420 is a wasteful number, since it uses less digits than its factorization.

23326420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324 (or 1322 counting only the distinct ones).

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

The square root of 23326420 is about 4829.7432643982. The cubic root of 23326420 is about 285.7257383504.

Adding to 23326420 its reverse (2462332), we get a palindrome (25788752).

The spelling of 23326420 in words is "twenty-three million, three hundred twenty-six thousand, four hundred twenty".