2259688 has 8 divisors (see below), whose sum is σ = 4236930. Its totient is φ = 1129840.

The previous prime is 2259671. The next prime is 2259703. The reversal of 2259688 is 8869522.

2259688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2067844 + 191844 = 1438^2 + 438^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2259688.

It is an unprimeable number.

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, 141223 + ... + 141238.

2^2259688 is an apocalyptic number.

It is an amenable number.

2259688 is a deficient number, since it is larger than the sum of its proper divisors (1977242).

2259688 is a wasteful number, since it uses less digits than its factorization.

2259688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282467 (or 282463 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 2259688 is about 1503.2258645992. The cubic root of 2259688 is about 131.2248725896.

The spelling of 2259688 in words is "two million, two hundred fifty-nine thousand, six hundred eighty-eight".