189071484 has 48 divisors (see below), whose sum is σ = 533852928. Its totient is φ = 50842368.

The previous prime is 189071471. The next prime is 189071537. The reversal of 189071484 is 484170981.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 64774 + ... + 67629.

It is an arithmetic number, because the mean of its divisors is an integer number (11121936).

Almost surely, 2^189071484 is an apocalyptic number.

189071484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

189071484 is an abundant number, since it is smaller than the sum of its proper divisors (344781444).

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

189071484 is a wasteful number, since it uses less digits than its factorization.

189071484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132434 (or 132432 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 189071484 is about 13750.3266870282. The cubic root of 189071484 is about 573.9516970203.

The spelling of 189071484 in words is "one hundred eighty-nine million, seventy-one thousand, four hundred eighty-four".