801880 has 16 divisors (see below), whose sum is σ = 1804320. Its totient is φ = 320736.

The previous prime is 801859. The next prime is 801883. The reversal of 801880 is 88108.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801883) by changing a digit.

801880 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9984 + ... + 10063.

It is an arithmetic number, because the mean of its divisors is an integer number (112770).

2⁸⁰¹⁸⁸⁰ is an apocalyptic number.

It is an amenable number.

801880 is an abundant number, since it is smaller than the sum of its proper divisors (1002440).

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

801880 is a wasteful number, since it uses less digits than its factorization.

801880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20058 (or 20054 counting only the distinct ones).

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

The square root of 801880 is about 895.4775262395. The cubic root of 801880 is about 92.9044380090.

Adding to 801880 its reverse (88108), we get a palindrome (889988).

It can be divided in two parts, 801 and 880, that added together give a square (1681 = 41²).

The spelling of 801880 in words is "eight hundred one thousand, eight hundred eighty".