1043220443 has 16 divisors (see below), whose sum is σ = 1077705216. Its totient is φ = 1009465920.

The previous prime is 1043220433. The next prime is 1043220461. The reversal of 1043220443 is 3440223401.

It is not a de Polignac number, because 1043220443 - 2¹⁴ = 1043204059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1043220433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1011338 + ... + 1012368.

It is an arithmetic number, because the mean of its divisors is an integer number (67356576).

Almost surely, 2^1043220443 is an apocalyptic number.

1043220443 is a deficient number, since it is larger than the sum of its proper divisors (34484773).

1043220443 is a wasteful number, since it uses less digits than its factorization.

1043220443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1043220443 is about 32298.9232483066. The cubic root of 1043220443 is about 1014.2041025473.

Adding to 1043220443 its reverse (3440223401), we get a palindrome (4483443844).

The spelling of 1043220443 in words is "one billion, forty-three million, two hundred twenty thousand, four hundred forty-three".