30210989 has 8 divisors (see below), whose sum is σ = 32669568. Its totient is φ = 27828160.

The previous prime is 30210979. The next prime is 30211001. The reversal of 30210989 is 98901203.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30210989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30210959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18107 + ... + 19704.

It is an arithmetic number, because the mean of its divisors is an integer number (4083696).

Almost surely, 2^30210989 is an apocalyptic number.

It is an amenable number.

30210989 is a deficient number, since it is larger than the sum of its proper divisors (2458579).

30210989 is a wasteful number, since it uses less digits than its factorization.

30210989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37875.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 30210989 is about 5496.4524013221. The cubic root of 30210989 is about 311.4499849705.

The spelling of 30210989 in words is "thirty million, two hundred ten thousand, nine hundred eighty-nine".