30212889 has 8 divisors (see below), whose sum is σ = 46038720. Its totient is φ = 17264496.

The previous prime is 30212851. The next prime is 30212899. The reversal of 30212889 is 98821203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30212889 - 2¹¹ = 30210841 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30212849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719334 + ... + 719375.

It is an arithmetic number, because the mean of its divisors is an integer number (5754840).

Almost surely, 2^30212889 is an apocalyptic number.

It is an amenable number.

30212889 is a deficient number, since it is larger than the sum of its proper divisors (15825831).

30212889 is a wasteful number, since it uses less digits than its factorization.

30212889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438719.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 30212889 is about 5496.6252373616. The cubic root of 30212889 is about 311.4565139697.

The spelling of 30212889 in words is "thirty million, two hundred twelve thousand, eight hundred eighty-nine".