30230989 has 4 divisors (see below), whose sum is σ = 30306780. Its totient is φ = 30155200.

The previous prime is 30230933. The next prime is 30230999. The reversal of 30230989 is 98903203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20775364 + 9455625 = 4558^2 + 3075^2 .

It is not a de Polignac number, because 30230989 - 2¹⁷ = 30099917 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 (30230999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37294 + ... + 38095.

It is an arithmetic number, because the mean of its divisors is an integer number (7576695).

Almost surely, 2^30230989 is an apocalyptic number.

It is an amenable number.

30230989 is a deficient number, since it is larger than the sum of its proper divisors (75791).

30230989 is an equidigital number, since it uses as much as digits as its factorization.

30230989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75790.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 30230989 is about 5498.2714556486. The cubic root of 30230989 is about 311.5186975577.

The spelling of 30230989 in words is "thirty million, two hundred thirty thousand, nine hundred eighty-nine".