30000222 has 48 divisors (see below), whose sum is σ = 74591712. Its totient is φ = 8536320.

The previous prime is 30000199. The next prime is 30000247. The reversal of 30000222 is 22200003.

It is a Harshad number since it is a multiple of its sum of digits (9).

30000222 is a modest number, since divided by 222 gives 30 as remainder.

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 23 ways as a sum of consecutive naturals, for example, 57322 + ... + 57842.

It is an arithmetic number, because the mean of its divisors is an integer number (1553994).

Almost surely, 2^30000222 is an apocalyptic number.

30000222 is an abundant number, since it is smaller than the sum of its proper divisors (44591490).

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

30000222 is a wasteful number, since it uses less digits than its factorization.

30000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993 (or 990 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 30000222 is about 5477.2458407488. The cubic root of 30000222 is about 310.7240170442.

Adding to 30000222 its reverse (22200003), we get a palindrome (52200225).

The spelling of 30000222 in words is "thirty million, two hundred twenty-two", and thus it is an aban number.