23390212 has 12 divisors (see below), whose sum is σ = 40969180. Its totient is φ = 11684736.

The previous prime is 23390183. The next prime is 23390221. The reversal of 23390212 is 21209332.

It can be written as a sum of positive squares in 2 ways, for example, as 4519876 + 18870336 = 2126^2 + 4344^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4864 + ... + 8392.

Almost surely, 2^23390212 is an apocalyptic number.

It is an amenable number.

23390212 is a deficient number, since it is larger than the sum of its proper divisors (17578968).

23390212 is a wasteful number, since it uses less digits than its factorization.

23390212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5190 (or 5188 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 23390212 is about 4836.3428331747. The cubic root of 23390212 is about 285.9859643951.

Adding to 23390212 its reverse (21209332), we get a palindrome (44599544).

The spelling of 23390212 in words is "twenty-three million, three hundred ninety thousand, two hundred twelve".