189030460 has 24 divisors (see below), whose sum is σ = 403474176. Its totient is φ = 74372160.

The previous prime is 189030437. The next prime is 189030509. The reversal of 189030460 is 64030981.

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 7 ways as a sum of consecutive naturals, for example, 76252 + ... + 78691.

It is an arithmetic number, because the mean of its divisors is an integer number (16811424).

Almost surely, 2^189030460 is an apocalyptic number.

189030460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189030460 is an abundant number, since it is smaller than the sum of its proper divisors (214443716).

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

189030460 is a wasteful number, since it uses less digits than its factorization.

189030460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155013 (or 155011 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 189030460 is about 13748.8348597254. The cubic root of 189030460 is about 573.9101827438.

The spelling of 189030460 in words is "one hundred eighty-nine million, thirty thousand, four hundred sixty".