2287788 has 12 divisors (see below), whose sum is σ = 5338200. Its totient is φ = 762592.

The previous prime is 2287777. The next prime is 2287807. The reversal of 2287788 is 8877822.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95313 + ... + 95336.

It is an arithmetic number, because the mean of its divisors is an integer number (444850).

2^2287788 is an apocalyptic number.

It is an amenable number.

2287788 is an abundant number, since it is smaller than the sum of its proper divisors (3050412).

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

2287788 is a wasteful number, since it uses less digits than its factorization.

2287788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190656 (or 190654 counting only the distinct ones).

The product of its digits is 100352, while the sum is 42.

The square root of 2287788 is about 1512.5435530919. The cubic root of 2287788 is about 131.7665755256.

The spelling of 2287788 in words is "two million, two hundred eighty-seven thousand, seven hundred eighty-eight".