2190982 has 4 divisors (see below), whose sum is σ = 3286476. Its totient is φ = 1095490.

The previous prime is 2190971. The next prime is 2190983. The reversal of 2190982 is 2890912.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 547744 + ... + 547747.

It is an arithmetic number, because the mean of its divisors is an integer number (821619).

2^2190982 is an apocalyptic number.

2190982 is a deficient number, since it is larger than the sum of its proper divisors (1095494).

2190982 is a wasteful number, since it uses less digits than its factorization.

2190982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095493.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2190982 is about 1480.1966085625. The cubic root of 2190982 is about 129.8811932309.

The spelling of 2190982 in words is "two million, one hundred ninety thousand, nine hundred eighty-two".