189530808 has 32 divisors (see below), whose sum is σ = 480504960. Its totient is φ = 62286560.

The previous prime is 189530801. The next prime is 189530827. The reversal of 189530808 is 808035981.

It is a super-2 number, since 2×189530808² = 71843854362265728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 189530808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189530801) by changing a digit.

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, 53910 + ... + 57317.

It is an arithmetic number, because the mean of its divisors is an integer number (15015780).

Almost surely, 2^189530808 is an apocalyptic number.

It is an amenable number.

189530808 is an abundant number, since it is smaller than the sum of its proper divisors (290974152).

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

189530808 is a wasteful number, since it uses less digits than its factorization.

189530808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111307 (or 111303 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 189530808 is about 13767.0188494096. The cubic root of 189530808 is about 574.4161009006.

The spelling of 189530808 in words is "one hundred eighty-nine million, five hundred thirty thousand, eight hundred eight".