2194443 has 24 divisors (see below), whose sum is σ = 3428880. Its totient is φ = 1347840.

The previous prime is 2194441. The next prime is 2194447. The reversal of 2194443 is 3444912.

2194443 is a `hidden beast` number, since 219 + 4 + 443 = 666.

It is not a de Polignac number, because 2194443 - 2¹ = 2194441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2194441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6855 + ... + 7167.

It is an arithmetic number, because the mean of its divisors is an integer number (142870).

2^2194443 is an apocalyptic number.

2194443 is a deficient number, since it is larger than the sum of its proper divisors (1234437).

2194443 is a wasteful number, since it uses less digits than its factorization.

2194443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 376 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2194443 is about 1481.3652486811. The cubic root of 2194443 is about 129.9495464963.

The spelling of 2194443 in words is "two million, one hundred ninety-four thousand, four hundred forty-three".