1128469860 has 288 divisors, whose sum is σ = 4266366720. Its totient is φ = 242528256.

The previous prime is 1128469841. The next prime is 1128469883. The reversal of 1128469860 is 689648211.

1128469860 is a `hidden beast` number, since 1 + 128 + 469 + 8 + 60 = 666.

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 95 ways as a sum of consecutive naturals, for example, 1091904 + ... + 1092936.

Almost surely, 2^1128469860 is an apocalyptic number.

1128469860 is a gapful number since it is divisible by the number (10) 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 1128469860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2133183360).

1128469860 is an abundant number, since it is smaller than the sum of its proper divisors (3137896860).

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

1128469860 is a wasteful number, since it uses less digits than its factorization.

1128469860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 1128469860 is about 33592.7054581795. The cubic root of 1128469860 is about 1041.1100881009.

The spelling of 1128469860 in words is "one billion, one hundred twenty-eight million, four hundred sixty-nine thousand, eight hundred sixty".