2287782 has 48 divisors (see below), whose sum is σ = 5770752. Its totient is φ = 641520.

The previous prime is 2287777. The next prime is 2287807. The reversal of 2287782 is 2877822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8307 + ... + 8577.

It is an arithmetic number, because the mean of its divisors is an integer number (120224).

2^2287782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2287782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2885376).

2287782 is an abundant number, since it is smaller than the sum of its proper divisors (3482970).

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

2287782 is a wasteful number, since it uses less digits than its factorization.

2287782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 350 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 2287782 is about 1512.5415696767. The cubic root of 2287782 is about 131.7664603342.

The spelling of 2287782 in words is "two million, two hundred eighty-seven thousand, seven hundred eighty-two".