30189069 has 6 divisors (see below), whose sum is σ = 43606446. Its totient is φ = 20126040.

The previous prime is 30189031. The next prime is 30189073. The reversal of 30189069 is 96098103.

It can be written as a sum of positive squares in only one way, i.e., 29975625 + 213444 = 5475^2 + 462^2 .

It is not a de Polignac number, because 30189069 - 2¹¹ = 30187021 is a prime.

It is a super-2 number, since 2×30189069² = 1822759774173522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30189169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1677162 + ... + 1677179.

It is an arithmetic number, because the mean of its divisors is an integer number (7267741).

Almost surely, 2^30189069 is an apocalyptic number.

It is an amenable number.

30189069 is a deficient number, since it is larger than the sum of its proper divisors (13417377).

30189069 is a wasteful number, since it uses less digits than its factorization.

30189069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354347 (or 3354344 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 30189069 is about 5494.4580260477. The cubic root of 30189069 is about 311.3746411337.

The spelling of 30189069 in words is "thirty million, one hundred eighty-nine thousand, sixty-nine".