18300212 has 12 divisors (see below), whose sum is σ = 36600480. Its totient is φ = 7842936.

The previous prime is 18300197. The next prime is 18300223. The reversal of 18300212 is 21200381.

18300212 is an admirable number.

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, 326762 + ... + 326817.

It is an arithmetic number, because the mean of its divisors is an integer number (3050040).

Almost surely, 2^18300212 is an apocalyptic number.

It is an amenable number.

18300212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18300212 is a wasteful number, since it uses less digits than its factorization.

18300212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653590 (or 653588 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 18300212 is about 4277.8747059726. The cubic root of 18300212 is about 263.5231098316.

Adding to 18300212 its reverse (21200381), we get a palindrome (39500593).

The spelling of 18300212 in words is "eighteen million, three hundred thousand, two hundred twelve".