2113973444 has 24 divisors (see below), whose sum is σ = 4174934400. Its totient is φ = 927762080.

The previous prime is 2113973441. The next prime is 2113973467. The reversal of 2113973444 is 4443793112.

It is a super-2 number, since 2×2113973444² = 8937767443874442272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2113973398 and 2113973407.

It is not an unprimeable number, because it can be changed into a prime (2113973441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827084 + ... + 829635.

It is an arithmetic number, because the mean of its divisors is an integer number (173955600).

Almost surely, 2^2113973444 is an apocalyptic number.

It is an amenable number.

2113973444 is a deficient number, since it is larger than the sum of its proper divisors (2060960956).

2113973444 is a wasteful number, since it uses less digits than its factorization.

2113973444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656763 (or 1656761 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 2113973444 is about 45977.9669406989. The cubic root of 2113973444 is about 1283.4132218254.

The spelling of 2113973444 in words is "two billion, one hundred thirteen million, nine hundred seventy-three thousand, four hundred forty-four".