189166460 has 108 divisors (see below), whose sum is σ = 480016152. Its totient is φ = 62403264.

The previous prime is 189166457. The next prime is 189166469. The reversal of 189166460 is 64661981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189166469) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2823347 + ... + 2823413.

It is an arithmetic number, because the mean of its divisors is an integer number (4444594).

Almost surely, 2^189166460 is an apocalyptic number.

189166460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189166460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240008076).

189166460 is an abundant number, since it is smaller than the sum of its proper divisors (290849692).

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

189166460 is a wasteful number, since it uses less digits than its factorization.

189166460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 189166460 is about 13753.7798441010. The cubic root of 189166460 is about 574.0477850363.

The spelling of 189166460 in words is "one hundred eighty-nine million, one hundred sixty-six thousand, four hundred sixty".