189038532 has 12 divisors (see below), whose sum is σ = 441089936. Its totient is φ = 63012840.

The previous prime is 189038497. The next prime is 189038533. The reversal of 189038532 is 235830981.

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

It is not an unprimeable number, because it can be changed into a prime (189038533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7876594 + ... + 7876617.

Almost surely, 2^189038532 is an apocalyptic number.

189038532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189038532 is an abundant number, since it is smaller than the sum of its proper divisors (252051404).

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

189038532 is a wasteful number, since it uses less digits than its factorization.

189038532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15753218 (or 15753216 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 189038532 is about 13749.1284087392. The cubic root of 189038532 is about 573.9183516866.

The spelling of 189038532 in words is "one hundred eighty-nine million, thirty-eight thousand, five hundred thirty-two".