1355244443 has 16 divisors (see below), whose sum is σ = 1626190080. Its totient is φ = 1104830496.

The previous prime is 1355244431. The next prime is 1355244467. The reversal of 1355244443 is 3444425531.

It is not a de Polignac number, because 1355244443 - 2¹⁴ = 1355228059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1355244413) 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, 36221 + ... + 63422.

It is an arithmetic number, because the mean of its divisors is an integer number (101636880).

Almost surely, 2^1355244443 is an apocalyptic number.

1355244443 is a deficient number, since it is larger than the sum of its proper divisors (270945637).

1355244443 is an equidigital number, since it uses as much as digits as its factorization.

1355244443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99746.

The product of its digits is 115200, while the sum is 35.

The square root of 1355244443 is about 36813.6447937446. The cubic root of 1355244443 is about 1106.6387627942.

Adding to 1355244443 its reverse (3444425531), we get a palindrome (4799669974).

The spelling of 1355244443 in words is "one billion, three hundred fifty-five million, two hundred forty-four thousand, four hundred forty-three".