1999441124 has 6 divisors (see below), whose sum is σ = 3499021974. Its totient is φ = 999720560.

The previous prime is 1999441109. The next prime is 1999441141. The reversal of 1999441124 is 4211449991.

It can be written as a sum of positive squares in only one way, i.e., 1819022500 + 180418624 = 42650^2 + 13432^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249930137 + ... + 249930144.

It is an arithmetic number, because the mean of its divisors is an integer number (583170329).

Almost surely, 2^1999441124 is an apocalyptic number.

It is an amenable number.

1999441124 is a deficient number, since it is larger than the sum of its proper divisors (1499580850).

1999441124 is a wasteful number, since it uses less digits than its factorization.

1999441124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499860285 (or 499860283 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 1999441124 is about 44715.1106897881. The cubic root of 1999441124 is about 1259.8036823558.

The spelling of 1999441124 in words is "one billion, nine hundred ninety-nine million, four hundred forty-one thousand, one hundred twenty-four".