180535028 has 12 divisors (see below), whose sum is σ = 317248932. Its totient is φ = 89892480.

The previous prime is 180535021. The next prime is 180535031. The reversal of 180535028 is 820535081.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 107910544 + 72624484 = 10388^2 + 8522^2 .

It is a junction number, because it is equal to n+sod(n) for n = 180534985 and 180535003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180535021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92675 + ... + 94602.

It is an arithmetic number, because the mean of its divisors is an integer number (26437411).

Almost surely, 2^180535028 is an apocalyptic number.

It is an amenable number.

180535028 is a deficient number, since it is larger than the sum of its proper divisors (136713904).

180535028 is a wasteful number, since it uses less digits than its factorization.

180535028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187522 (or 187520 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 180535028 is about 13436.3323864811. The cubic root of 180535028 is about 565.1804868861.

The spelling of 180535028 in words is "one hundred eighty million, five hundred thirty-five thousand, twenty-eight".