30189068 has 48 divisors (see below), whose sum is σ = 65507904. Its totient is φ = 11854080.

The previous prime is 30189031. The next prime is 30189073. The reversal of 30189068 is 86098103.

It is a super-2 number, since 2×30189068² = 1822759653417248, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 71498 + ... + 71918.

It is an arithmetic number, because the mean of its divisors is an integer number (1364748).

Almost surely, 2^30189068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30189068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32753952).

30189068 is an abundant number, since it is smaller than the sum of its proper divisors (35318836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30189068 is a wasteful number, since it uses less digits than its factorization.

30189068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 30189068 is about 5494.4579350469. The cubic root of 30189068 is about 311.3746376957.

The spelling of 30189068 in words is "thirty million, one hundred eighty-nine thousand, sixty-eight".