189899324 has 12 divisors (see below), whose sum is σ = 333704448. Its totient is φ = 94555200.

The previous prime is 189899323. The next prime is 189899327. The reversal of 189899324 is 423998981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189899323) 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, 97532 + ... + 99459.

It is an arithmetic number, because the mean of its divisors is an integer number (27808704).

Almost surely, 2^189899324 is an apocalyptic number.

It is an amenable number.

189899324 is a deficient number, since it is larger than the sum of its proper divisors (143805124).

189899324 is a wasteful number, since it uses less digits than its factorization.

189899324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197236 (or 197234 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 53.

The square root of 189899324 is about 13780.3963658525. The cubic root of 189899324 is about 574.7881503123.

The spelling of 189899324 in words is "one hundred eighty-nine million, eight hundred ninety-nine thousand, three hundred twenty-four".