189052272 has 160 divisors (see below), whose sum is σ = 578534400. Its totient is φ = 58975488.

The previous prime is 189052267. The next prime is 189052309. The reversal of 189052272 is 272250981.

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

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 31 ways as a sum of consecutive naturals, for example, 526429 + ... + 526787.

It is an arithmetic number, because the mean of its divisors is an integer number (3615840).

Almost surely, 2^189052272 is an apocalyptic number.

189052272 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 189052272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289267200).

189052272 is an abundant number, since it is smaller than the sum of its proper divisors (389482128).

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

189052272 is a wasteful number, since it uses less digits than its factorization.

189052272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 189052272 is about 13749.6280676970. The cubic root of 189052272 is about 573.9322561660.

The spelling of 189052272 in words is "one hundred eighty-nine million, fifty-two thousand, two hundred seventy-two".