180023928 has 32 divisors (see below), whose sum is σ = 514354560. Its totient is φ = 51435360.

The previous prime is 180023923. The next prime is 180023953. The reversal of 180023928 is 829320081.

It is a super-2 number, since 2×180023928² = 64817229305098368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180023923) 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, 535618 + ... + 535953.

It is an arithmetic number, because the mean of its divisors is an integer number (16073580).

Almost surely, 2^180023928 is an apocalyptic number.

It is an amenable number.

180023928 is an abundant number, since it is smaller than the sum of its proper divisors (334330632).

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

180023928 is a wasteful number, since it uses less digits than its factorization.

180023928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071587 (or 1071583 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 180023928 is about 13417.2995792745. The cubic root of 180023928 is about 564.6466352313.

The spelling of 180023928 in words is "one hundred eighty million, twenty-three thousand, nine hundred twenty-eight".