2281983 has 8 divisors (see below), whose sum is σ = 3319296. Its totient is φ = 1383000.

The previous prime is 2281973. The next prime is 2281987. The reversal of 2281983 is 3891822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2281983 - 2¹⁰ = 2280959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 69151 = 2281983 / (2 + 2 + 8 + 1 + 9 + 8 + 3).

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34543 + ... + 34608.

It is an arithmetic number, because the mean of its divisors is an integer number (414912).

2^2281983 is an apocalyptic number.

2281983 is a deficient number, since it is larger than the sum of its proper divisors (1037313).

2281983 is a wasteful number, since it uses less digits than its factorization.

2281983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69165.

The product of its digits is 6912, while the sum is 33.

The square root of 2281983 is about 1510.6233812569. The cubic root of 2281983 is about 131.6550335999.

It can be divided in two parts, 228 and 1983, that added together give a triangular number (2211 = T₆₆).

The spelling of 2281983 in words is "two million, two hundred eighty-one thousand, nine hundred eighty-three".