30684222 has 12 divisors (see below), whose sum is σ = 66482520. Its totient is φ = 10228068.

The previous prime is 30684217. The next prime is 30684239. The reversal of 30684222 is 22248603.

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 5 ways as a sum of consecutive naturals, for example, 852322 + ... + 852357.

It is an arithmetic number, because the mean of its divisors is an integer number (5540210).

Almost surely, 2^30684222 is an apocalyptic number.

30684222 is an abundant number, since it is smaller than the sum of its proper divisors (35798298).

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

30684222 is a wasteful number, since it uses less digits than its factorization.

30684222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704687 (or 1704684 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 30684222 is about 5539.3340755004. The cubic root of 30684222 is about 313.0677788754.

The spelling of 30684222 in words is "thirty million, six hundred eighty-four thousand, two hundred twenty-two".