212423324 has 12 divisors (see below), whose sum is σ = 373688448. Its totient is φ = 105655200.

The previous prime is 212423317. The next prime is 212423353. The reversal of 212423324 is 423324212.

It is a self number, because there is not a number n which added to its sum of digits gives 212423324.

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, 138257 + ... + 139784.

It is an arithmetic number, because the mean of its divisors is an integer number (31140704).

Almost surely, 2^212423324 is an apocalyptic number.

It is an amenable number.

212423324 is a deficient number, since it is larger than the sum of its proper divisors (161265124).

212423324 is a wasteful number, since it uses less digits than its factorization.

212423324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278236 (or 278234 counting only the distinct ones).

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

The square root of 212423324 is about 14574.7495347261. The cubic root of 212423324 is about 596.6698135903.

Adding to 212423324 its reverse (423324212), we get a palindrome (635747536).

The spelling of 212423324 in words is "two hundred twelve million, four hundred twenty-three thousand, three hundred twenty-four".