880018 has 4 divisors (see below), whose sum is σ = 1320030. Its totient is φ = 440008.

The previous prime is 880007. The next prime is 880021. The reversal of 880018 is 810088.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 769129 + 110889 = 877^2 + 333^2 .

It is a junction number, because it is equal to n+sod(n) for n = 879974 and 880001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220003 + ... + 220006.

2⁸⁸⁰⁰¹⁸ is an apocalyptic number.

880018 is a deficient number, since it is larger than the sum of its proper divisors (440012).

880018 is a wasteful number, since it uses less digits than its factorization.

880018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440011.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 880018 is about 938.0927459479. The cubic root of 880018 is about 95.8290505122.

The spelling of 880018 in words is "eight hundred eighty thousand, eighteen".