189775040 has 280 divisors, whose sum is σ = 597621360. Its totient is φ = 56899584.

The previous prime is 189775013. The next prime is 189775073. The reversal of 189775040 is 40577981.

It is a tau number, because it is divible by the number of its divisors (280).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9988151 + ... + 9988169.

It is an arithmetic number, because the mean of its divisors is an integer number (2134362).

Almost surely, 2^189775040 is an apocalyptic number.

189775040 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 189775040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298810680).

189775040 is an abundant number, since it is smaller than the sum of its proper divisors (407846320).

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

189775040 is an equidigital number, since it uses as much as digits as its factorization.

189775040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 189775040 is about 13775.8861783916. The cubic root of 189775040 is about 574.6627284850.

The spelling of 189775040 in words is "one hundred eighty-nine million, seven hundred seventy-five thousand, forty".