1128285744 has 20 divisors (see below), whose sum is σ = 2914738296. Its totient is φ = 376095232.

The previous prime is 1128285727. The next prime is 1128285749. The reversal of 1128285744 is 4475828211.

It is a super-2 number, since 2×1128285744² = 2546057440227267072, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1128285696 and 1128285705.

It is not an unprimeable number, because it can be changed into a prime (1128285749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11752929 + ... + 11753024.

Almost surely, 2^1128285744 is an apocalyptic number.

It is an amenable number.

1128285744 is an abundant number, since it is smaller than the sum of its proper divisors (1786452552).

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

1128285744 is a wasteful number, since it uses less digits than its factorization.

1128285744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23505964 (or 23505958 counting only the distinct ones).

The product of its digits is 143360, while the sum is 42.

The square root of 1128285744 is about 33589.9649300204. The cubic root of 1128285744 is about 1041.0534640954.

The spelling of 1128285744 in words is "one billion, one hundred twenty-eight million, two hundred eighty-five thousand, seven hundred forty-four".