189031024 has 120 divisors (see below), whose sum is σ = 486250128. Its totient is φ = 70318080.

The previous prime is 189031013. The next prime is 189031081. The reversal of 189031024 is 420130981.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 189030983 and 189031001.

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 23 ways as a sum of consecutive naturals, for example, 172719 + ... + 173809.

Almost surely, 2^189031024 is an apocalyptic number.

189031024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189031024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243125064).

189031024 is an abundant number, since it is smaller than the sum of its proper divisors (297219104).

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

189031024 is a wasteful number, since it uses less digits than its factorization.

189031024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 189031024 is about 13748.8553705390. The cubic root of 189031024 is about 573.9107535249.

The spelling of 189031024 in words is "one hundred eighty-nine million, thirty-one thousand, twenty-four".