1042444140 has 24 divisors (see below), whose sum is σ = 2918843760. Its totient is φ = 277985088.

The previous prime is 1042444103. The next prime is 1042444153. The reversal of 1042444140 is 414442401.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1042444140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8686975 + ... + 8687094.

It is an arithmetic number, because the mean of its divisors is an integer number (121618490).

Almost surely, 2^1042444140 is an apocalyptic number.

1042444140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042444140 is an abundant number, since it is smaller than the sum of its proper divisors (1876399620).

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

1042444140 is a wasteful number, since it uses less digits than its factorization.

1042444140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17374081 (or 17374079 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1042444140 is about 32286.9035368832. The cubic root of 1042444140 is about 1013.9524698689.

Adding to 1042444140 its reverse (414442401), we get a palindrome (1456886541).

The spelling of 1042444140 in words is "one billion, forty-two million, four hundred forty-four thousand, one hundred forty".