1441643879 has 4 divisors (see below), whose sum is σ = 1552539576. Its totient is φ = 1330748184.

The previous prime is 1441643837. The next prime is 1441643897. The reversal of 1441643879 is 9783461441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1441643879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1441643279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55447829 + ... + 55447854.

It is an arithmetic number, because the mean of its divisors is an integer number (388134894).

Almost surely, 2^1441643879 is an apocalyptic number.

1441643879 is a deficient number, since it is larger than the sum of its proper divisors (110895697).

1441643879 is a wasteful number, since it uses less digits than its factorization.

1441643879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110895696.

The product of its digits is 580608, while the sum is 47.

The square root of 1441643879 is about 37968.9857515315. The cubic root of 1441643879 is about 1129.6727794023.

The spelling of 1441643879 in words is "one billion, four hundred forty-one million, six hundred forty-three thousand, eight hundred seventy-nine".