30222989 has 4 divisors (see below), whose sum is σ = 31537056. Its totient is φ = 28908924.

The previous prime is 30222979. The next prime is 30223001. The reversal of 30222989 is 98922203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30222989 - 2¹⁶ = 30157453 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 (30222919) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 656999 + ... + 657044.

It is an arithmetic number, because the mean of its divisors is an integer number (7884264).

Almost surely, 2^30222989 is an apocalyptic number.

It is an amenable number.

30222989 is a deficient number, since it is larger than the sum of its proper divisors (1314067).

30222989 is a wasteful number, since it uses less digits than its factorization.

30222989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314066.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 30222989 is about 5497.5439061457. The cubic root of 30222989 is about 311.4912161606.

The spelling of 30222989 in words is "thirty million, two hundred twenty-two thousand, nine hundred eighty-nine".