2288649 has 16 divisors (see below), whose sum is σ = 3354624. Its totient is φ = 1376400.

The previous prime is 2288641. The next prime is 2288677. The reversal of 2288649 is 9468822.

It is not a de Polignac number, because 2288649 - 2³ = 2288641 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 2²¹ + 8 + 8 + 6⁴ + 4³ + 9⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2288641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7204 + ... + 7514.

It is an arithmetic number, because the mean of its divisors is an integer number (209664).

2^2288649 is an apocalyptic number.

It is an amenable number.

2288649 is a deficient number, since it is larger than the sum of its proper divisors (1065975).

2288649 is a wasteful number, since it uses less digits than its factorization.

2288649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548.

The product of its digits is 55296, while the sum is 39.

The square root of 2288649 is about 1512.8281462215. The cubic root of 2288649 is about 131.7831033962.

The spelling of 2288649 in words is "two million, two hundred eighty-eight thousand, six hundred forty-nine".