2289557 has 4 divisors (see below), whose sum is σ = 2410080. Its totient is φ = 2169036.

The previous prime is 2289503. The next prime is 2289571. The reversal of 2289557 is 7559822.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2289557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2289557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60233 + ... + 60270.

It is an arithmetic number, because the mean of its divisors is an integer number (602520).

2^2289557 is an apocalyptic number.

It is an amenable number.

2289557 is a deficient number, since it is larger than the sum of its proper divisors (120523).

2289557 is a wasteful number, since it uses less digits than its factorization.

2289557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120522.

The product of its digits is 50400, while the sum is 38.

The square root of 2289557 is about 1513.1282166426. The cubic root of 2289557 is about 131.8005289948.

The spelling of 2289557 in words is "two million, two hundred eighty-nine thousand, five hundred fifty-seven".