1944983556 has 24 divisors (see below), whose sum is σ = 5042550240. Its totient is φ = 648327816.

The previous prime is 1944983539. The next prime is 1944983633. The reversal of 1944983556 is 6553894491.

1944983556 is a `hidden beast` number, since 1 + 9 + 4 + 4 + 9 + 83 + 556 = 666.

It is a super-2 number, since 2×1944983556² = 7565922066220810272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9004446 + ... + 9004661.

It is an arithmetic number, because the mean of its divisors is an integer number (210106260).

Almost surely, 2^1944983556 is an apocalyptic number.

It is an amenable number.

1944983556 is an abundant number, since it is smaller than the sum of its proper divisors (3097566684).

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

1944983556 is a wasteful number, since it uses less digits than its factorization.

1944983556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18009120 (or 18009112 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The square root of 1944983556 is about 44101.9677112031. The cubic root of 1944983556 is about 1248.2607397147.

The spelling of 1944983556 in words is "one billion, nine hundred forty-four million, nine hundred eighty-three thousand, five hundred fifty-six".