1142100044 has 12 divisors (see below), whose sum is σ = 2001531168. Its totient is φ = 570234000.

The previous prime is 1142100031. The next prime is 1142100073. The reversal of 1142100044 is 4400012411.

It is a junction number, because it is equal to n+sod(n) for n = 1142099995 and 1142100031.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200852 + ... + 206459.

It is an arithmetic number, because the mean of its divisors is an integer number (166794264).

Almost surely, 2^1142100044 is an apocalyptic number.

It is an amenable number.

1142100044 is a deficient number, since it is larger than the sum of its proper divisors (859431124).

1142100044 is a wasteful number, since it uses less digits than its factorization.

1142100044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408016 (or 408014 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1142100044 is about 33794.9706909179. The cubic root of 1142100044 is about 1045.2849948019.

Adding to 1142100044 its reverse (4400012411), we get a palindrome (5542112455).

The spelling of 1142100044 in words is "one billion, one hundred forty-two million, one hundred thousand, forty-four".