2193443 has 16 divisors (see below), whose sum is σ = 2626560. Its totient is φ = 1792896.

The previous prime is 2193439. The next prime is 2193449. The reversal of 2193443 is 3443912.

It is not a de Polignac number, because 2193443 - 2² = 2193439 is a prime.

It is a super-2 number, since 2×2193443² = 9622384388498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2193449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19355 + ... + 19467.

It is an arithmetic number, because the mean of its divisors is an integer number (164160).

2^2193443 is an apocalyptic number.

2193443 is a deficient number, since it is larger than the sum of its proper divisors (433117).

2193443 is a wasteful number, since it uses less digits than its factorization.

2193443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226.

The product of its digits is 2592, while the sum is 26.

The square root of 2193443 is about 1481.0276837386. The cubic root of 2193443 is about 129.9298043126.

The spelling of 2193443 in words is "two million, one hundred ninety-three thousand, four hundred forty-three".