2146443 has 16 divisors (see below), whose sum is σ = 3150336. Its totient is φ = 1291680.

The previous prime is 2146439. The next prime is 2146457. The reversal of 2146443 is 3446412.

It is not a de Polignac number, because 2146443 - 2² = 2146439 is a prime.

2146443 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2146423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248 + ... + 2418.

It is an arithmetic number, because the mean of its divisors is an integer number (196896).

2^2146443 is an apocalyptic number.

2146443 is a deficient number, since it is larger than the sum of its proper divisors (1003893).

2146443 is a wasteful number, since it uses less digits than its factorization.

2146443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234.

The product of its digits is 2304, while the sum is 24.

The square root of 2146443 is about 1465.0744008411. The cubic root of 2146443 is about 128.9950722233.

It can be divided in two parts, 21 and 46443, that added together give a palindrome (46464).

The spelling of 2146443 in words is "two million, one hundred forty-six thousand, four hundred forty-three".