189953632 has 24 divisors (see below), whose sum is σ = 407969352. Its totient is φ = 86342400.

The previous prime is 189953587. The next prime is 189953633. The reversal of 189953632 is 236359981.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189953633) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 269469 + ... + 270172.

It is an arithmetic number, because the mean of its divisors is an integer number (16998723).

Almost surely, 2^189953632 is an apocalyptic number.

It is an amenable number.

189953632 is an abundant number, since it is smaller than the sum of its proper divisors (218015720).

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

189953632 is a wasteful number, since it uses less digits than its factorization.

189953632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539662 (or 539654 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 189953632 is about 13782.3667053231. The cubic root of 189953632 is about 574.8429383248.

The spelling of 189953632 in words is "one hundred eighty-nine million, nine hundred fifty-three thousand, six hundred thirty-two".