2921982 has 32 divisors (see below), whose sum is σ = 6912000. Its totient is φ = 805728.

The previous prime is 2921981. The next prime is 2921987. The reversal of 2921982 is 2891292.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19 + ... + 2417.

It is an arithmetic number, because the mean of its divisors is an integer number (216000).

2^2921982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2921982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3456000).

2921982 is an abundant number, since it is smaller than the sum of its proper divisors (3990018).

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

2921982 is a wasteful number, since it uses less digits than its factorization.

2921982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440.

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

The square root of 2921982 is about 1709.3805895704. The cubic root of 2921982 is about 142.9637217050.

The spelling of 2921982 in words is "two million, nine hundred twenty-one thousand, nine hundred eighty-two".