23420233 has 4 divisors (see below), whose sum is σ = 24438528. Its totient is φ = 22401940.

The previous prime is 23420219. The next prime is 23420239. The reversal of 23420233 is 33202432.

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 a cyclic number.

It is not a de Polignac number, because 23420233 - 2¹³ = 23412041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23420233.

It is not an unprimeable number, because it can be changed into a prime (23420239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509113 + ... + 509158.

It is an arithmetic number, because the mean of its divisors is an integer number (6109632).

Almost surely, 2^23420233 is an apocalyptic number.

23420233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23420233 is a deficient number, since it is larger than the sum of its proper divisors (1018295).

23420233 is a wasteful number, since it uses less digits than its factorization.

23420233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018294.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 23420233 is about 4839.4455260908. The cubic root of 23420233 is about 286.1082650408.

Adding to 23420233 its reverse (33202432), we get a palindrome (56622665).

It can be divided in two parts, 23420 and 233, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 23420233 in words is "twenty-three million, four hundred twenty thousand, two hundred thirty-three".