801900 has 126 divisors (see below), whose sum is σ = 2846172. Its totient is φ = 194400.

The previous prime is 801883. The next prime is 801947. The reversal of 801900 is 9108.

801900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×801900² = 1286087220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 72895 + ... + 72905.

2⁸⁰¹⁹⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 801900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1423086).

801900 is an abundant number, since it is smaller than the sum of its proper divisors (2044272).

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

801900 is a wasteful number, since it uses less digits than its factorization.

801900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 801900 is about 895.4886933960. The cubic root of 801900 is about 92.9052103911.

The spelling of 801900 in words is "eight hundred one thousand, nine hundred".