189603940 has 12 divisors (see below), whose sum is σ = 398168316. Its totient is φ = 75841568.

The previous prime is 189603937. The next prime is 189603959. The reversal of 189603940 is 49306981.

It can be written as a sum of positive squares in 2 ways, for example, as 109035364 + 80568576 = 10442^2 + 8976^2 .

It is a junction number, because it is equal to n+sod(n) for n = 189603893 and 189603902.

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 3 ways as a sum of consecutive naturals, for example, 4740079 + ... + 4740118.

It is an arithmetic number, because the mean of its divisors is an integer number (33180693).

Almost surely, 2^189603940 is an apocalyptic number.

189603940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189603940 is an abundant number, since it is smaller than the sum of its proper divisors (208564376).

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

189603940 is a wasteful number, since it uses less digits than its factorization.

189603940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9480206 (or 9480204 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 189603940 is about 13769.6746512036. The cubic root of 189603940 is about 574.4899724377.

The spelling of 189603940 in words is "one hundred eighty-nine million, six hundred three thousand, nine hundred forty".