1126261728 has 36 divisors (see below), whose sum is σ = 3202807608. Its totient is φ = 375420480.

The previous prime is 1126261709. The next prime is 1126261733. The reversal of 1126261728 is 8271626211.

1126261728 is a `hidden beast` number, since 1 + 1 + 2 + 626 + 1 + 7 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1126261692 and 1126261701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1955028 + ... + 1955603.

It is an arithmetic number, because the mean of its divisors is an integer number (88966878).

Almost surely, 2^1126261728 is an apocalyptic number.

1126261728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1126261728 is an abundant number, since it is smaller than the sum of its proper divisors (2076545880).

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

1126261728 is a wasteful number, since it uses less digits than its factorization.

1126261728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910647 (or 3910636 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 1126261728 is about 33559.8231222991. The cubic root of 1126261728 is about 1040.4305810749.

Adding to 1126261728 its reverse (8271626211), we get a palindrome (9397887939).

The spelling of 1126261728 in words is "one billion, one hundred twenty-six million, two hundred sixty-one thousand, seven hundred twenty-eight".