2190908 has 6 divisors (see below), whose sum is σ = 3834096. Its totient is φ = 1095452.

The previous prime is 2190901. The next prime is 2190959. The reversal of 2190908 is 8090912.

2190908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273860 + ... + 273867.

It is an arithmetic number, because the mean of its divisors is an integer number (639016).

2^2190908 is an apocalyptic number.

It is an amenable number.

2190908 is a deficient number, since it is larger than the sum of its proper divisors (1643188).

2190908 is a wasteful number, since it uses less digits than its factorization.

2190908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547731 (or 547729 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 2190908 is about 1480.1716116721. The cubic root of 2190908 is about 129.8797309769.

The spelling of 2190908 in words is "two million, one hundred ninety thousand, nine hundred eight".