1128955320 has 80 divisors (see below), whose sum is σ = 3794555160. Its totient is φ = 301053888.

The previous prime is 1128955301. The next prime is 1128955337. The reversal of 1128955320 is 235598211.

1128955320 is a `hidden beast` number, since 1 + 1 + 2 + 89 + 553 + 20 = 666.

1128955320 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1128955320² = 2549080229112604800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 170982 + ... + 177461.

Almost surely, 2^1128955320 is an apocalyptic number.

1128955320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128955320 is an abundant number, since it is smaller than the sum of its proper divisors (2665599840).

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

1128955320 is a wasteful number, since it uses less digits than its factorization.

1128955320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348466 (or 348453 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 1128955320 is about 33599.9303570707. The cubic root of 1128955320 is about 1041.2593595060.

The spelling of 1128955320 in words is "one billion, one hundred twenty-eight million, nine hundred fifty-five thousand, three hundred twenty".