189030216 has 32 divisors (see below), whose sum is σ = 480326400. Its totient is φ = 61976640.

The previous prime is 189030209. The next prime is 189030239. The reversal of 189030216 is 612030981.

It is a super-2 number, since 2×189030216² = 71464845122013312, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 63096 + ... + 66023.

It is an arithmetic number, because the mean of its divisors is an integer number (15010200).

Almost surely, 2^189030216 is an apocalyptic number.

It is an amenable number.

189030216 is an abundant number, since it is smaller than the sum of its proper divisors (291296184).

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

189030216 is a wasteful number, since it uses less digits than its factorization.

189030216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129189 (or 129185 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 189030216 is about 13748.8259862433. The cubic root of 189030216 is about 573.9099358098.

The spelling of 189030216 in words is "one hundred eighty-nine million, thirty thousand, two hundred sixteen".