2289801 has 4 divisors (see below), whose sum is σ = 3053072. Its totient is φ = 1526532.

The previous prime is 2289779. The next prime is 2289803. The reversal of 2289801 is 1089822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2289801 - 2¹⁹ = 1765513 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2289803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381631 + ... + 381636.

It is an arithmetic number, because the mean of its divisors is an integer number (763268).

2^2289801 is an apocalyptic number.

It is an amenable number.

2289801 is a deficient number, since it is larger than the sum of its proper divisors (763271).

2289801 is an equidigital number, since it uses as much as digits as its factorization.

2289801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763270.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 2289801 is about 1513.2088421629. The cubic root of 2289801 is about 131.8052108593.

The spelling of 2289801 in words is "two million, two hundred eighty-nine thousand, eight hundred one".