2194379 has 4 divisors (see below), whose sum is σ = 2393880. Its totient is φ = 1994880.

The previous prime is 2194369. The next prime is 2194391. The reversal of 2194379 is 9734912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2194379 - 2²⁰ = 1145803 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2194319) 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 3 ways as a sum of consecutive naturals, for example, 99734 + ... + 99755.

It is an arithmetic number, because the mean of its divisors is an integer number (598470).

2^2194379 is an apocalyptic number.

2194379 is a deficient number, since it is larger than the sum of its proper divisors (199501).

2194379 is a wasteful number, since it uses less digits than its factorization.

2194379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199500.

The product of its digits is 13608, while the sum is 35.

The square root of 2194379 is about 1481.3436468288. The cubic root of 2194379 is about 129.9482831762.

It can be divided in two parts, 21943 and 79, that added together give a palindrome (22022).

The spelling of 2194379 in words is "two million, one hundred ninety-four thousand, three hundred seventy-nine".