2281338 has 32 divisors (see below), whose sum is σ = 5140800. Its totient is φ = 749808.

The previous prime is 2281327. The next prime is 2281361. The reversal of 2281338 is 8331822.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4228 + ... + 4736.

It is an arithmetic number, because the mean of its divisors is an integer number (160650).

2^2281338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2281338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2570400).

2281338 is an abundant number, since it is smaller than the sum of its proper divisors (2859462).

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

2281338 is a wasteful number, since it uses less digits than its factorization.

2281338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 597 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2281338 is about 1510.4098781457. The cubic root of 2281338 is about 131.6426283806.

The spelling of 2281338 in words is "two million, two hundred eighty-one thousand, three hundred thirty-eight".