2281982 has 4 divisors (see below), whose sum is σ = 3422976. Its totient is φ = 1140990.

The previous prime is 2281973. The next prime is 2281987. The reversal of 2281982 is 2891822.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281987) by changing a digit.

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 as a sum of consecutive naturals, namely, 570494 + ... + 570497.

It is an arithmetic number, because the mean of its divisors is an integer number (855744).

2^2281982 is an apocalyptic number.

2281982 is a deficient number, since it is larger than the sum of its proper divisors (1140994).

2281982 is a wasteful number, since it uses less digits than its factorization.

2281982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140993.

The product of its digits is 4608, while the sum is 32.

The square root of 2281982 is about 1510.6230502677. The cubic root of 2281982 is about 131.6550143688.

The spelling of 2281982 in words is "two million, two hundred eighty-one thousand, nine hundred eighty-two".