23420433 has 4 divisors (see below), whose sum is σ = 31227248. Its totient is φ = 15613620.

The previous prime is 23420387. The next prime is 23420437. The reversal of 23420433 is 33402432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23420433 - 2¹³ = 23412241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23420437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3903403 + ... + 3903408.

It is an arithmetic number, because the mean of its divisors is an integer number (7806812).

Almost surely, 2^23420433 is an apocalyptic number.

It is an amenable number.

23420433 is a deficient number, since it is larger than the sum of its proper divisors (7806815).

23420433 is an equidigital number, since it uses as much as digits as its factorization.

23420433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7806814.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 23420433 is about 4839.4661895709. The cubic root of 23420433 is about 286.1090794576.

Adding to 23420433 its reverse (33402432), we get a palindrome (56822865).

The spelling of 23420433 in words is "twenty-three million, four hundred twenty thousand, four hundred thirty-three".