212323424 has 24 divisors (see below), whose sum is σ = 418675320. Its totient is φ = 105993216.

The previous prime is 212323409. The next prime is 212323439. The reversal of 212323424 is 424323212.

It is an interprime number because it is at equal distance from previous prime (212323409) and next prime (212323439).

It is a self number, because there is not a number n which added to its sum of digits gives 212323424.

It is a congruent number.

It is an unprimeable number.

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, 16607 + ... + 26465.

It is an arithmetic number, because the mean of its divisors is an integer number (17444805).

Almost surely, 2^212323424 is an apocalyptic number.

It is an amenable number.

212323424 is a deficient number, since it is larger than the sum of its proper divisors (206351896).

212323424 is an equidigital number, since it uses as much as digits as its factorization.

212323424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10542 (or 10534 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 212323424 is about 14571.3219715989. The cubic root of 212323424 is about 596.5762635038.

Adding to 212323424 its reverse (424323212), we get a palindrome (636646636).

The spelling of 212323424 in words is "two hundred twelve million, three hundred twenty-three thousand, four hundred twenty-four".