2281384 has 16 divisors (see below), whose sum is σ = 4888800. Its totient is φ = 977712.

The previous prime is 2281381. The next prime is 2281403. The reversal of 2281384 is 4831822.

2281384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (2281381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20314 + ... + 20425.

It is an arithmetic number, because the mean of its divisors is an integer number (305550).

2^2281384 is an apocalyptic number.

It is an amenable number.

2281384 is an abundant number, since it is smaller than the sum of its proper divisors (2607416).

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

2281384 is a wasteful number, since it uses less digits than its factorization.

2281384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40752 (or 40748 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 2281384 is about 1510.4251057236. The cubic root of 2281384 is about 131.6435131713.

It can be divided in two parts, 22 and 81384, that added together give a triangular number (81406 = T₄₀₃).

The spelling of 2281384 in words is "two million, two hundred eighty-one thousand, three hundred eighty-four".