189044450 has 96 divisors (see below), whose sum is σ = 418425600. Its totient is φ = 63504000.

The previous prime is 189044441. The next prime is 189044461. The reversal of 189044450 is 54440981.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 189044450.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1251875 + ... + 1252025.

It is an arithmetic number, because the mean of its divisors is an integer number (4358600).

Almost surely, 2^189044450 is an apocalyptic number.

189044450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189044450 is an abundant number, since it is smaller than the sum of its proper divisors (229381150).

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

189044450 is a wasteful number, since it uses less digits than its factorization.

189044450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 189044450 is about 13749.3436206970. The cubic root of 189044450 is about 573.9243406127.

The spelling of 189044450 in words is "one hundred eighty-nine million, forty-four thousand, four hundred fifty".