2129982 has 8 divisors (see below), whose sum is σ = 4259976. Its totient is φ = 709992.

The previous prime is 2129977. The next prime is 2129983. The reversal of 2129982 is 2899212.

It is a happy number.

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

2129982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177493 + ... + 177504.

It is an arithmetic number, because the mean of its divisors is an integer number (532497).

2^2129982 is an apocalyptic number.

2129982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2129982 is a wasteful number, since it uses less digits than its factorization.

2129982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355002.

The product of its digits is 5184, while the sum is 33.

The square root of 2129982 is about 1459.4457852212. The cubic root of 2129982 is about 128.6644726852.

It can be divided in two parts, 21 and 29982, that added together give a palindrome (30003).

The spelling of 2129982 in words is "two million, one hundred twenty-nine thousand, nine hundred eighty-two".