2194444 has 24 divisors (see below), whose sum is σ = 4423328. Its totient is φ = 933120.

The previous prime is 2194441. The next prime is 2194447. The reversal of 2194444 is 4444912.

2194444 is nontrivially palindromic in base 13.

It is an interprime number because it is at equal distance from previous prime (2194441) and next prime (2194447).

It is a Harshad number since it is a multiple of its sum of digits (28).

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 7 ways as a sum of consecutive naturals, for example, 4852 + ... + 5284.

2^2194444 is an apocalyptic number.

It is an amenable number.

2194444 is an abundant number, since it is smaller than the sum of its proper divisors (2228884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2194444 is a wasteful number, since it uses less digits than its factorization.

2194444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 623 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 2194444 is about 1481.3655862075. The cubic root of 2194444 is about 129.9495662355.

The spelling of 2194444 in words is "two million, one hundred ninety-four thousand, four hundred forty-four".