1944983555 has 32 divisors (see below), whose sum is σ = 2455388160. Its totient is φ = 1477232640.

The previous prime is 1944983539. The next prime is 1944983633. The reversal of 1944983555 is 5553894491.

It is not a de Polignac number, because 1944983555 - 2⁴ = 1944983539 is a prime.

It is a super-2 number, since 2×1944983555² = 7565922058440876050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1944983497 and 1944983506.

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, 2362874 + ... + 2363696.

It is an arithmetic number, because the mean of its divisors is an integer number (76730880).

Almost surely, 2^1944983555 is an apocalyptic number.

1944983555 is a deficient number, since it is larger than the sum of its proper divisors (510404605).

1944983555 is a wasteful number, since it uses less digits than its factorization.

1944983555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131.

The product of its digits is 3888000, while the sum is 53.

The square root of 1944983555 is about 44101.9676998657. The cubic root of 1944983555 is about 1248.2607395007.

The spelling of 1944983555 in words is "one billion, nine hundred forty-four million, nine hundred eighty-three thousand, five hundred fifty-five".