189323450 has 24 divisors (see below), whose sum is σ = 361662492. Its totient is φ = 73681920.

The previous prime is 189323447. The next prime is 189323461. The reversal of 189323450 is 54323981.

189323450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 162996289 + 26327161 = 12767^2 + 5131^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 189323450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49319 + ... + 53018.

Almost surely, 2^189323450 is an apocalyptic number.

189323450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189323450 is a deficient number, since it is larger than the sum of its proper divisors (172339042).

189323450 is a wasteful number, since it uses less digits than its factorization.

189323450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102386 (or 102381 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 189323450 is about 13759.4858188815. The cubic root of 189323450 is about 574.2065426424.

The spelling of 189323450 in words is "one hundred eighty-nine million, three hundred twenty-three thousand, four hundred fifty".