2191802 has 8 divisors (see below), whose sum is σ = 3460800. Its totient is φ = 1038204.

The previous prime is 2191799. The next prime is 2191807. The reversal of 2191802 is 2081912.

2191802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (2191807) 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 in 3 ways as a sum of consecutive naturals, for example, 28802 + ... + 28877.

It is an arithmetic number, because the mean of its divisors is an integer number (432600).

2^2191802 is an apocalyptic number.

2191802 is a deficient number, since it is larger than the sum of its proper divisors (1268998).

2191802 is a wasteful number, since it uses less digits than its factorization.

2191802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57700.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2191802 is about 1480.4735728813. The cubic root of 2191802 is about 129.8973943825.

The spelling of 2191802 in words is "two million, one hundred ninety-one thousand, eight hundred two".