2194845 has 8 divisors (see below), whose sum is σ = 3511776. Its totient is φ = 1170576.

The previous prime is 2194811. The next prime is 2194847. The reversal of 2194845 is 5484912.

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

It is not a de Polignac number, because 2194845 - 2¹⁴ = 2178461 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194847) by changing a digit.

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, 73147 + ... + 73176.

It is an arithmetic number, because the mean of its divisors is an integer number (438972).

2^2194845 is an apocalyptic number.

It is an amenable number.

2194845 is a deficient number, since it is larger than the sum of its proper divisors (1316931).

2194845 is a wasteful number, since it uses less digits than its factorization.

2194845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146331.

The product of its digits is 11520, while the sum is 33.

The square root of 2194845 is about 1481.5009281131. The cubic root of 2194845 is about 129.9574811640.

The spelling of 2194845 in words is "two million, one hundred ninety-four thousand, eight hundred forty-five".