180769128 has 32 divisors (see below), whose sum is σ = 452446560. Its totient is φ = 60186560.

The previous prime is 180769063. The next prime is 180769129. The reversal of 180769128 is 821967081.

It is a self number, because there is not a number n which added to its sum of digits gives 180769128.

It is not an unprimeable number, because it can be changed into a prime (180769129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19426 + ... + 27182.

It is an arithmetic number, because the mean of its divisors is an integer number (14138955).

Almost surely, 2^180769128 is an apocalyptic number.

It is an amenable number.

180769128 is an abundant number, since it is smaller than the sum of its proper divisors (271677432).

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

180769128 is a wasteful number, since it uses less digits than its factorization.

180769128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8737 (or 8733 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 180769128 is about 13445.0410189036. The cubic root of 180769128 is about 565.4246714566.

The spelling of 180769128 in words is "one hundred eighty million, seven hundred sixty-nine thousand, one hundred twenty-eight".