23420212 has 12 divisors (see below), whose sum is σ = 41019300. Its totient is φ = 11700416.

The previous prime is 23420207. The next prime is 23420213. The reversal of 23420212 is 21202432.

It can be written as a sum of positive squares in 2 ways, for example, as 17089956 + 6330256 = 4134^2 + 2516^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420213) 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, 7914 + ... + 10462.

It is an arithmetic number, because the mean of its divisors is an integer number (3418275).

Almost surely, 2^23420212 is an apocalyptic number.

It is an amenable number.

23420212 is a deficient number, since it is larger than the sum of its proper divisors (17599088).

23420212 is a wasteful number, since it uses less digits than its factorization.

23420212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4850 (or 4848 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 23420212 is about 4839.4433564202. The cubic root of 23420212 is about 286.1081795268.

Adding to 23420212 its reverse (21202432), we get a palindrome (44622644).

It can be divided in two parts, 23420 and 212, that added together give a palindrome (23632).

The spelling of 23420212 in words is "twenty-three million, four hundred twenty thousand, two hundred twelve".