1911441944 has 8 divisors (see below), whose sum is σ = 3583953660. Its totient is φ = 955720968.

The previous prime is 1911441929. The next prime is 1911441953. The reversal of 1911441944 is 4491441191.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1911441944² = 7307220610564998272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1911441898 and 1911441907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119465114 + ... + 119465129.

Almost surely, 2^1911441944 is an apocalyptic number.

It is an amenable number.

1911441944 is a deficient number, since it is larger than the sum of its proper divisors (1672511716).

1911441944 is a wasteful number, since it uses less digits than its factorization.

1911441944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238930249 (or 238930245 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 1911441944 is about 43720.0405306308. The cubic root of 1911441944 is about 1241.0435942275.

The spelling of 1911441944 in words is "one billion, nine hundred eleven million, four hundred forty-one thousand, nine hundred forty-four".