180528494 has 16 divisors (see below), whose sum is σ = 282638160. Its totient is φ = 86399040.

The previous prime is 180528433. The next prime is 180528497. The reversal of 180528494 is 494825081.

180528494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×180528494³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180528497) 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, 16424 + ... + 25115.

It is an arithmetic number, because the mean of its divisors is an integer number (17664885).

Almost surely, 2^180528494 is an apocalyptic number.

180528494 is a deficient number, since it is larger than the sum of its proper divisors (102109666).

180528494 is a wasteful number, since it uses less digits than its factorization.

180528494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41635.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 180528494 is about 13436.0892375721. The cubic root of 180528494 is about 565.1736683868.

The spelling of 180528494 in words is "one hundred eighty million, five hundred twenty-eight thousand, four hundred ninety-four".