189898080 has 48 divisors (see below), whose sum is σ = 598180464. Its totient is φ = 50639360.

The previous prime is 189898073. The next prime is 189898123. The reversal of 189898080 is 80898981.

189898080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×189898080² = 72122561575372800, which contains 22 as substring.

It is a congruent number.

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, 197331 + ... + 198290.

It is an arithmetic number, because the mean of its divisors is an integer number (12462093).

Almost surely, 2^189898080 is an apocalyptic number.

189898080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189898080 is an abundant number, since it is smaller than the sum of its proper divisors (408282384).

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

189898080 is a wasteful number, since it uses less digits than its factorization.

189898080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395639 (or 395631 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 51.

The square root of 189898080 is about 13780.3512291959. The cubic root of 189898080 is about 574.7868951946.

The spelling of 189898080 in words is "one hundred eighty-nine million, eight hundred ninety-eight thousand, eighty".