2284840 has 24 divisors (see below), whose sum is σ = 5162490. Its totient is φ = 910112.

The previous prime is 2284837. The next prime is 2284859. The reversal of 2284840 is 484822.

It can be written as a sum of positive squares in only one way, i.e., 2056356 + 228484 = 1434^2 + 478^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2284799 and 2284808.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9441 + ... + 9679.

2^2284840 is an apocalyptic number.

2284840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2284840 is an abundant number, since it is smaller than the sum of its proper divisors (2877650).

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

2284840 is an equidigital number, since it uses as much as digits as its factorization.

2284840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 2284840 is about 1511.5687215605. The cubic root of 2284840 is about 131.7099538991.

The spelling of 2284840 in words is "two million, two hundred eighty-four thousand, eight hundred forty".