1128885930 has 32 divisors (see below), whose sum is σ = 3010363200. Its totient is φ = 301036176.

The previous prime is 1128885907. The next prime is 1128885941. The reversal of 1128885930 is 395888211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2090260 + ... + 2090799.

It is an arithmetic number, because the mean of its divisors is an integer number (94073850).

Almost surely, 2^1128885930 is an apocalyptic number.

1128885930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1128885930 is an abundant number, since it is smaller than the sum of its proper divisors (1881477270).

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

1128885930 is a wasteful number, since it uses less digits than its factorization.

1128885930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181075 (or 4181069 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 1128885930 is about 33598.8977497774. The cubic root of 1128885930 is about 1041.2380257809.

The spelling of 1128885930 in words is "one billion, one hundred twenty-eight million, eight hundred eighty-five thousand, nine hundred thirty".