189494760 has 384 divisors, whose sum is σ = 742331520. Its totient is φ = 38320128.

The previous prime is 189494749. The next prime is 189494783. The reversal of 189494760 is 67494981.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2828247 + ... + 2828313.

It is an arithmetic number, because the mean of its divisors is an integer number (1933155).

Almost surely, 2^189494760 is an apocalyptic number.

189494760 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 189494760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371165760).

189494760 is an abundant number, since it is smaller than the sum of its proper divisors (552836760).

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

189494760 is a wasteful number, since it uses less digits than its factorization.

189494760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 189494760 is about 13765.7095712499. The cubic root of 189494760 is about 574.3796813782.

The spelling of 189494760 in words is "one hundred eighty-nine million, four hundred ninety-four thousand, seven hundred sixty".