1443440055 has 32 divisors (see below), whose sum is σ = 2447444160. Its totient is φ = 725150720.

The previous prime is 1443439999. The next prime is 1443440087. The reversal of 1443440055 is 5500443441.

It is not a de Polignac number, because 1443440055 - 2⁸ = 1443439799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22632 + ... + 58301.

It is an arithmetic number, because the mean of its divisors is an integer number (76482630).

Almost surely, 2^1443440055 is an apocalyptic number.

1443440055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1443440055 is a deficient number, since it is larger than the sum of its proper divisors (1004004105).

1443440055 is a wasteful number, since it uses less digits than its factorization.

1443440055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81011.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1443440055 is about 37992.6315882435. The cubic root of 1443440055 is about 1130.1417461261.

Adding to 1443440055 its reverse (5500443441), we get a palindrome (6943883496).

The spelling of 1443440055 in words is "one billion, four hundred forty-three million, four hundred forty thousand, fifty-five".