2259678 has 16 divisors (see below), whose sum is σ = 4554000. Its totient is φ = 747456.

The previous prime is 2259671. The next prime is 2259703. The reversal of 2259678 is 8769522.

It is a happy number.

It is a super-2 number, since 2×2259678² = 10212289327368, which contains 22 as substring.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2259671) 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 7 ways as a sum of consecutive naturals, for example, 553 + ... + 2196.

It is an arithmetic number, because the mean of its divisors is an integer number (284625).

2^2259678 is an apocalyptic number.

2259678 is an abundant number, since it is smaller than the sum of its proper divisors (2294322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2259678 is a wasteful number, since it uses less digits than its factorization.

2259678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891.

The product of its digits is 60480, while the sum is 39.

The square root of 2259678 is about 1503.2225384154. Note that the first 3 decimals coincide. The cubic root of 2259678 is about 131.2246790156.

The spelling of 2259678 in words is "two million, two hundred fifty-nine thousand, six hundred seventy-eight".