189337764 has 144 divisors (see below), whose sum is σ = 569733696. Its totient is φ = 48384000.

The previous prime is 189337763. The next prime is 189337829. The reversal of 189337764 is 467733981.

It is not an unprimeable number, because it can be changed into a prime (189337763) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 471964 + ... + 472364.

It is an arithmetic number, because the mean of its divisors is an integer number (3956484).

Almost surely, 2^189337764 is an apocalyptic number.

189337764 is a gapful number since it is divisible by the number (14) 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 189337764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284866848).

189337764 is an abundant number, since it is smaller than the sum of its proper divisors (380395932).

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

189337764 is a wasteful number, since it uses less digits than its factorization.

189337764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 497 counting only the distinct ones).

The product of its digits is 762048, while the sum is 48.

The square root of 189337764 is about 13760.0059593010. The cubic root of 189337764 is about 574.2210134423.

The spelling of 189337764 in words is "one hundred eighty-nine million, three hundred thirty-seven thousand, seven hundred sixty-four".