30542212 has 48 divisors (see below), whose sum is σ = 57746304. Its totient is φ = 14112000.

The previous prime is 30542207. The next prime is 30542243. The reversal of 30542212 is 21224503.

It is a self number, because there is not a number n which added to its sum of digits gives 30542212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430137 + ... + 430207.

It is an arithmetic number, because the mean of its divisors is an integer number (1203048).

Almost surely, 2^30542212 is an apocalyptic number.

It is an amenable number.

30542212 is a deficient number, since it is larger than the sum of its proper divisors (27204092).

30542212 is a wasteful number, since it uses less digits than its factorization.

30542212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 30542212 is about 5526.5008821134. The cubic root of 30542212 is about 312.5840610126.

Adding to 30542212 its reverse (21224503), we get a palindrome (51766715).

The spelling of 30542212 in words is "thirty million, five hundred forty-two thousand, two hundred twelve".