189562320 has 120 divisors (see below), whose sum is σ = 664350336. Its totient is φ = 48347904.

The previous prime is 189562309. The next prime is 189562337. The reversal of 189562320 is 23265981.

189562320 is a `hidden beast` number, since 1 + 8 + 9 + 5 + 623 + 20 = 666.

189562320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10837 + ... + 22283.

Almost surely, 2^189562320 is an apocalyptic number.

189562320 is a gapful number since it is divisible by the number (10) 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 189562320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332175168).

189562320 is an abundant number, since it is smaller than the sum of its proper divisors (474788016).

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

189562320 is a wasteful number, since it uses less digits than its factorization.

189562320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11489 (or 11480 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 189562320 is about 13768.1632761963. The cubic root of 189562320 is about 574.4479338908.

The spelling of 189562320 in words is "one hundred eighty-nine million, five hundred sixty-two thousand, three hundred twenty".