1042100556 has 48 divisors (see below), whose sum is σ = 2780983296. Its totient is φ = 297523584.

The previous prime is 1042100551. The next prime is 1042100569. The reversal of 1042100556 is 6550012401.

1042100556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1042100551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135445 + ... + 142931.

It is an arithmetic number, because the mean of its divisors is an integer number (57937152).

Almost surely, 2^1042100556 is an apocalyptic number.

It is an amenable number.

1042100556 is an abundant number, since it is smaller than the sum of its proper divisors (1738882740).

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

1042100556 is a wasteful number, since it uses less digits than its factorization.

1042100556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9158 (or 9156 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1042100556 is about 32281.5823032267. The cubic root of 1042100556 is about 1013.8410598618.

Adding to 1042100556 its reverse (6550012401), we get a palindrome (7592112957).

The spelling of 1042100556 in words is "one billion, forty-two million, one hundred thousand, five hundred fifty-six".