2215982 has 8 divisors (see below), whose sum is σ = 3341952. Its totient is φ = 1102000.

The previous prime is 2215979. The next prime is 2215987. The reversal of 2215982 is 2895122.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2519 + ... + 3282.

It is an arithmetic number, because the mean of its divisors is an integer number (417744).

2^2215982 is an apocalyptic number.

2215982 is a deficient number, since it is larger than the sum of its proper divisors (1125970).

2215982 is a wasteful number, since it uses less digits than its factorization.

2215982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994.

The product of its digits is 2880, while the sum is 29.

The square root of 2215982 is about 1488.6174794083. The cubic root of 2215982 is about 130.3733253052.

The spelling of 2215982 in words is "two million, two hundred fifteen thousand, nine hundred eighty-two".