23420032 has 16 divisors (see below), whose sum is σ = 46657350. Its totient is φ = 11709952.

The previous prime is 23420021. The next prime is 23420039. The reversal of 23420032 is 23002432.

It can be written as a sum of positive squares in only one way, i.e., 17774656 + 5645376 = 4216^2 + 2376^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 23419988 and 23420015.

It is not an unprimeable number, because it can be changed into a prime (23420039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91357 + ... + 91612.

Almost surely, 2^23420032 is an apocalyptic number.

It is an amenable number.

23420032 is a deficient number, since it is larger than the sum of its proper divisors (23237318).

23420032 is an equidigital number, since it uses as much as digits as its factorization.

23420032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182983 (or 182971 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 23420032 is about 4839.4247592043. The cubic root of 23420032 is about 286.1074465473.

Adding to 23420032 its reverse (23002432), we get a palindrome (46422464).

The spelling of 23420032 in words is "twenty-three million, four hundred twenty thousand, thirty-two".