180028477 has 8 divisors (see below), whose sum is σ = 189675360. Its totient is φ = 170398800.

The previous prime is 180028451. The next prime is 180028481. The reversal of 180028477 is 774820081.

180028477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 180028477 - 2⁷ = 180028349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180028427) 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, 21078 + ... + 28360.

It is an arithmetic number, because the mean of its divisors is an integer number (23709420).

Almost surely, 2^180028477 is an apocalyptic number.

It is an amenable number.

180028477 is a deficient number, since it is larger than the sum of its proper divisors (9646883).

180028477 is a wasteful number, since it uses less digits than its factorization.

180028477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8603.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 180028477 is about 13417.4690981571. The cubic root of 180028477 is about 564.6513911841.

The spelling of 180028477 in words is "one hundred eighty million, twenty-eight thousand, four hundred seventy-seven".