2194349 has 4 divisors (see below), whose sum is σ = 2200380. Its totient is φ = 2188320.

The previous prime is 2194337. The next prime is 2194351. The reversal of 2194349 is 9434912.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1525225 + 669124 = 1235^2 + 818^2 .

It is a cyclic number.

It is not a de Polignac number, because 2194349 - 2²⁰ = 1145773 is a prime.

It is a Duffinian number.

It is a congruent 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, 2432 + ... + 3209.

It is an arithmetic number, because the mean of its divisors is an integer number (550095).

2^2194349 is an apocalyptic number.

It is an amenable number.

2194349 is a deficient number, since it is larger than the sum of its proper divisors (6031).

2194349 is an equidigital number, since it uses as much as digits as its factorization.

2194349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6030.

The product of its digits is 7776, while the sum is 32.

The square root of 2194349 is about 1481.3335208521. Note that the first 3 decimals coincide. The cubic root of 2194349 is about 129.9476909864.

The spelling of 2194349 in words is "two million, one hundred ninety-four thousand, three hundred forty-nine".