23420532 has 24 divisors (see below), whose sum is σ = 57024576. Its totient is φ = 7467328.

The previous prime is 23420479. The next prime is 23420533. The reversal of 23420532 is 23502432.

It is a junction number, because it is equal to n+sod(n) for n = 23420499 and 23420508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42153 + ... + 42704.

It is an arithmetic number, because the mean of its divisors is an integer number (2376024).

Almost surely, 2^23420532 is an apocalyptic number.

It is an amenable number.

23420532 is an abundant number, since it is smaller than the sum of its proper divisors (33604044).

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

23420532 is a wasteful number, since it uses less digits than its factorization.

23420532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84887 (or 84885 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 23420532 is about 4839.4764179609. The cubic root of 23420532 is about 286.1094825922.

Adding to 23420532 its reverse (23502432), we get a palindrome (46922964).

The spelling of 23420532 in words is "twenty-three million, four hundred twenty thousand, five hundred thirty-two".