2287638 has 24 divisors (see below), whose sum is σ = 5218200. Its totient is φ = 722304.

The previous prime is 2287633. The next prime is 2287661. The reversal of 2287638 is 8367822.

It is a happy number.

It is a d-powerful number, because it can be written as 2¹⁷ + 2²¹ + 8 + 7³ + 6 + 3¹⁰ + 8 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2287633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3003 + ... + 3686.

It is an arithmetic number, because the mean of its divisors is an integer number (217425).

2^2287638 is an apocalyptic number.

2287638 is an abundant number, since it is smaller than the sum of its proper divisors (2930562).

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

2287638 is a wasteful number, since it uses less digits than its factorization.

2287638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6716 (or 6713 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2287638 is about 1512.4939669301. The cubic root of 2287638 is about 131.7636956815.

The spelling of 2287638 in words is "two million, two hundred eighty-seven thousand, six hundred thirty-eight".