189043452 has 72 divisors (see below), whose sum is σ = 518263200. Its totient is φ = 57755520.

The previous prime is 189043409. The next prime is 189043457. The reversal of 189043452 is 254340981.

189043452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189043457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68377 + ... + 71087.

It is an arithmetic number, because the mean of its divisors is an integer number (7198100).

Almost surely, 2^189043452 is an apocalyptic number.

189043452 is a gapful number since it is divisible by the number (12) 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 189043452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259131600).

189043452 is an abundant number, since it is smaller than the sum of its proper divisors (329219748).

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

189043452 is a wasteful number, since it uses less digits than its factorization.

189043452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883 (or 2878 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 189043452 is about 13749.3073280075. The cubic root of 189043452 is about 573.9233306606.

The spelling of 189043452 in words is "one hundred eighty-nine million, forty-three thousand, four hundred fifty-two".