1943289144 has 80 divisors (see below), whose sum is σ = 5729519400. Its totient is φ = 613666368.

The previous prime is 1943289143. The next prime is 1943289151. The reversal of 1943289144 is 4419823491.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1943289144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1943289143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 66607 + ... + 91230.

Almost surely, 2^1943289144 is an apocalyptic number.

It is an amenable number.

1943289144 is an abundant number, since it is smaller than the sum of its proper divisors (3786230256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1943289144 is a wasteful number, since it uses less digits than its factorization.

1943289144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157874 (or 157861 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 1943289144 is about 44082.7533622844. The cubic root of 1943289144 is about 1247.8981518216.

The spelling of 1943289144 in words is "one billion, nine hundred forty-three million, two hundred eighty-nine thousand, one hundred forty-four".