2287628 has 12 divisors (see below), whose sum is σ = 4575312. Its totient is φ = 980400.

The previous prime is 2287627. The next prime is 2287633. The reversal of 2287628 is 8267822.

2287628 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2287627) 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, 40823 + ... + 40878.

It is an arithmetic number, because the mean of its divisors is an integer number (381276).

2^2287628 is an apocalyptic number.

2287628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2287628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2287628 is a wasteful number, since it uses less digits than its factorization.

2287628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81712 (or 81710 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 2287628 is about 1512.4906611282. The cubic root of 2287628 is about 131.7635036874.

The spelling of 2287628 in words is "two million, two hundred eighty-seven thousand, six hundred twenty-eight".