2287688 has 16 divisors (see below), whose sum is σ = 4619580. Its totient is φ = 1055808.

The previous prime is 2287687. The next prime is 2287699. The reversal of 2287688 is 8867822.

It can be written as a sum of positive squares in 2 ways, for example, as 2256004 + 31684 = 1502^2 + 178^2 .

It is not an unprimeable number, because it can be changed into a prime (2287687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10895 + ... + 11102.

2^2287688 is an apocalyptic number.

It is an amenable number.

2287688 is an abundant number, since it is smaller than the sum of its proper divisors (2331892).

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

2287688 is a wasteful number, since it uses less digits than its factorization.

2287688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22016 (or 22012 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 2287688 is about 1512.5104958314. The cubic root of 2287688 is about 131.7646556435.

The spelling of 2287688 in words is "two million, two hundred eighty-seven thousand, six hundred eighty-eight".