2981882 has 4 divisors (see below), whose sum is σ = 4472826. Its totient is φ = 1490940.

The previous prime is 2981873. The next prime is 2981887. The reversal of 2981882 is 2881892.

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

It can be written as a sum of positive squares in only one way, i.e., 1515361 + 1466521 = 1231^2 + 1211^2 .

It is a nialpdrome in base 9 and base 12.

It is not an unprimeable number, because it can be changed into a prime (2981887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745469 + ... + 745472.

2^2981882 is an apocalyptic number.

2981882 is a deficient number, since it is larger than the sum of its proper divisors (1490944).

2981882 is a wasteful number, since it uses less digits than its factorization.

2981882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490943.

The product of its digits is 18432, while the sum is 38.

The square root of 2981882 is about 1726.8126707897. The cubic root of 2981882 is about 143.9340297098.

The spelling of 2981882 in words is "two million, nine hundred eighty-one thousand, eight hundred eighty-two".