1128650772 has 12 divisors (see below), whose sum is σ = 2633518496. Its totient is φ = 376216920.

The previous prime is 1128650767. The next prime is 1128650777. The reversal of 1128650772 is 2770568211.

It is an interprime number because it is at equal distance from previous prime (1128650767) and next prime (1128650777).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1128650772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128650777) 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, 47027104 + ... + 47027127.

Almost surely, 2^1128650772 is an apocalyptic number.

1128650772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1128650772 is an abundant number, since it is smaller than the sum of its proper divisors (1504867724).

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

1128650772 is a wasteful number, since it uses less digits than its factorization.

1128650772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94054238 (or 94054236 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 1128650772 is about 33595.3980777130. The cubic root of 1128650772 is about 1041.1657207325.

The spelling of 1128650772 in words is "one billion, one hundred twenty-eight million, six hundred fifty thousand, seven hundred seventy-two".