180023385 has 32 divisors (see below), whose sum is σ = 304571520. Its totient is φ = 90547200.

The previous prime is 180023381. The next prime is 180023401. The reversal of 180023385 is 583320081.

It is a happy number.

It is not a de Polignac number, because 180023385 - 2² = 180023381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (180023381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67375 + ... + 69995.

It is an arithmetic number, because the mean of its divisors is an integer number (9517860).

Almost surely, 2^180023385 is an apocalyptic number.

180023385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

180023385 is a deficient number, since it is larger than the sum of its proper divisors (124548135).

180023385 is a wasteful number, since it uses less digits than its factorization.

180023385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 180023385 is about 13417.2793441890. The cubic root of 180023385 is about 564.6460675226.

The spelling of 180023385 in words is "one hundred eighty million, twenty-three thousand, three hundred eighty-five".