1127866860 has 72 divisors (see below), whose sum is σ = 3428932416. Its totient is φ = 300084480.

The previous prime is 1127866799. The next prime is 1127866891. The reversal of 1127866860 is 686687211.

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 23 ways as a sum of consecutive naturals, for example, 75405 + ... + 89115.

Almost surely, 2^1127866860 is an apocalyptic number.

1127866860 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 1127866860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1714466208).

1127866860 is an abundant number, since it is smaller than the sum of its proper divisors (2301065556).

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

1127866860 is a wasteful number, since it uses less digits than its factorization.

1127866860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14183 (or 14178 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1127866860 is about 33583.7290960965. The cubic root of 1127866860 is about 1040.9246153474.

The spelling of 1127866860 in words is "one billion, one hundred twenty-seven million, eight hundred sixty-six thousand, eight hundred sixty".