2009801 has 8 divisors (see below), whose sum is σ = 2133600. Its totient is φ = 1887840.

The previous prime is 2009789. The next prime is 2009807. The reversal of 2009801 is 1089002.

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

It is not a de Polignac number, because 2009801 - 2⁶ = 2009737 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 (2009807) 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, 2261 + ... + 3021.

It is an arithmetic number, because the mean of its divisors is an integer number (266700).

2^2009801 is an apocalyptic number.

It is an amenable number.

2009801 is a deficient number, since it is larger than the sum of its proper divisors (123799).

2009801 is a wasteful number, since it uses less digits than its factorization.

2009801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 2009801 is about 1417.6745042498. The cubic root of 2009801 is about 126.1975778177.

It can be divided in two parts, 200 and 9801, that added together give a palindrome (10001).

The spelling of 2009801 in words is "two million, nine thousand, eight hundred one".