2190842 has 16 divisors (see below), whose sum is σ = 3471552. Its totient is φ = 1034880.

The previous prime is 2190829. The next prime is 2190857. The reversal of 2190842 is 2480912.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4217 + ... + 4707.

It is an arithmetic number, because the mean of its divisors is an integer number (216972).

2^2190842 is an apocalyptic number.

2190842 is a deficient number, since it is larger than the sum of its proper divisors (1280710).

2190842 is a wasteful number, since it uses less digits than its factorization.

2190842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2190842 is about 1480.1493167921. The cubic root of 2190842 is about 129.8784267767.

The spelling of 2190842 in words is "two million, one hundred ninety thousand, eight hundred forty-two".