1057443 has 4 divisors (see below), whose sum is σ = 1409928. Its totient is φ = 704960.

The previous prime is 1057421. The next prime is 1057477. The reversal of 1057443 is 3447501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3447501 = 3 ⋅1149167.

It is a cyclic number.

It is not a de Polignac number, because 1057443 - 2⁵ = 1057411 is a prime.

It is a super-2 number, since 2×1057443² = 2236371396498, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1057493) 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 3 ways as a sum of consecutive naturals, for example, 176238 + ... + 176243.

It is an arithmetic number, because the mean of its divisors is an integer number (352482).

2^1057443 is an apocalyptic number.

1057443 is a deficient number, since it is larger than the sum of its proper divisors (352485).

1057443 is an equidigital number, since it uses as much as digits as its factorization.

1057443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352484.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 1057443 is about 1028.3204753383. The cubic root of 1057443 is about 101.8792303812.

The spelling of 1057443 in words is "one million, fifty-seven thousand, four hundred forty-three".