189416028 has 12 divisors (see below), whose sum is σ = 441970760. Its totient is φ = 63138672.

The previous prime is 189415991. The next prime is 189416033. The reversal of 189416028 is 820614981.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×189416028³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7892323 + ... + 7892346.

Almost surely, 2^189416028 is an apocalyptic number.

It is an amenable number.

189416028 is an abundant number, since it is smaller than the sum of its proper divisors (252554732).

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

189416028 is a wasteful number, since it uses less digits than its factorization.

189416028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15784676 (or 15784674 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 189416028 is about 13762.8495595934. The cubic root of 189416028 is about 574.3001218774.

The spelling of 189416028 in words is "one hundred eighty-nine million, four hundred sixteen thousand, twenty-eight".