1126361856 has 144 divisors (see below), whose sum is σ = 3137621760. Its totient is φ = 358256640.

The previous prime is 1126361851. The next prime is 1126361879. The reversal of 1126361856 is 6581636211.

It is not an unprimeable number, because it can be changed into a prime (1126361851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2293771 + ... + 2294261.

It is an arithmetic number, because the mean of its divisors is an integer number (21789040).

Almost surely, 2^1126361856 is an apocalyptic number.

1126361856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1126361856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1568810880).

1126361856 is an abundant number, since it is smaller than the sum of its proper divisors (2011259904).

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

1126361856 is a wasteful number, since it uses less digits than its factorization.

1126361856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 628 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 1126361856 is about 33561.3148729307. The cubic root of 1126361856 is about 1040.4614126137.

The spelling of 1126361856 in words is "one billion, one hundred twenty-six million, three hundred sixty-one thousand, eight hundred fifty-six".