2288686 has 4 divisors (see below), whose sum is σ = 3433032. Its totient is φ = 1144342.

The previous prime is 2288681. The next prime is 2288687. The reversal of 2288686 is 6868822.

2288686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6868822 = 2 ⋅3434411.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2288681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572170 + ... + 572173.

It is an arithmetic number, because the mean of its divisors is an integer number (858258).

2^2288686 is an apocalyptic number.

2288686 is a deficient number, since it is larger than the sum of its proper divisors (1144346).

2288686 is a wasteful number, since it uses less digits than its factorization.

2288686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144345.

The product of its digits is 73728, while the sum is 40.

The square root of 2288686 is about 1512.8403749239. The cubic root of 2288686 is about 131.7838135602.

The spelling of 2288686 in words is "two million, two hundred eighty-eight thousand, six hundred eighty-six".