2285240 has 16 divisors (see below), whose sum is σ = 5141880. Its totient is φ = 914080.

The previous prime is 2285237. The next prime is 2285249. The reversal of 2285240 is 425822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2285249) 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, 28526 + ... + 28605.

2^2285240 is an apocalyptic number.

2285240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2285240 is an abundant number, since it is smaller than the sum of its proper divisors (2856640).

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

2285240 is a wasteful number, since it uses less digits than its factorization.

2285240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57142 (or 57138 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2285240 is about 1511.7010286429. The cubic root of 2285240 is about 131.7176394711.

The spelling of 2285240 in words is "two million, two hundred eighty-five thousand, two hundred forty".