189043000 has 32 divisors (see below), whose sum is σ = 442362960. Its totient is φ = 75616800.

The previous prime is 189042983. The next prime is 189043033. The reversal of 189043000 is 340981.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 93522 + ... + 95521.

Almost surely, 2^189043000 is an apocalyptic number.

189043000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189043000 is an abundant number, since it is smaller than the sum of its proper divisors (253319960).

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

189043000 is a wasteful number, since it uses less digits than its factorization.

189043000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189064 (or 189050 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 189043000 is about 13749.2908908060. The cubic root of 189043000 is about 573.9228732463.

Adding to 189043000 its reverse (340981), we get a palindrome (189383981).

It can be divided in two parts, 18904 and 3000, that added together give a square (21904 = 148²).

The spelling of 189043000 in words is "one hundred eighty-nine million, forty-three thousand".