1128570732 has 54 divisors (see below), whose sum is σ = 2962416548. Its totient is φ = 376181496.

The previous prime is 1128570731. The next prime is 1128570743. The reversal of 1128570732 is 2370758211.

1128570732 is a `hidden beast` number, since 1 + 12 + 8 + 570 + 73 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (54).

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

It is not an unprimeable number, because it can be changed into a prime (1128570731) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4743 + ... + 47745.

Almost surely, 2^1128570732 is an apocalyptic number.

1128570732 is a gapful number since it is divisible by the number (12) 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 1128570732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1481208274).

1128570732 is an abundant number, since it is smaller than the sum of its proper divisors (1833845816).

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

1128570732 is an frugal number, since it uses more digits than its factorization.

1128570732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43031 (or 43008 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 1128570732 is about 33594.2068220102. The cubic root of 1128570732 is about 1041.1411081962.

The spelling of 1128570732 in words is "one billion, one hundred twenty-eight million, five hundred seventy thousand, seven hundred thirty-two".