1128287874 has 32 divisors (see below), whose sum is σ = 2582599680. Its totient is φ = 321910992.

The previous prime is 1128287863. The next prime is 1128287893. The reversal of 1128287874 is 4787828211.

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, 11517 + ... + 48879.

It is an arithmetic number, because the mean of its divisors is an integer number (80706240).

Almost surely, 2^1128287874 is an apocalyptic number.

1128287874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1128287874 is an abundant number, since it is smaller than the sum of its proper divisors (1454311806).

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

1128287874 is a wasteful number, since it uses less digits than its factorization.

1128287874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38094.

The product of its digits is 401408, while the sum is 48.

The square root of 1128287874 is about 33589.9966359034. The cubic root of 1128287874 is about 1041.0541192020.

The spelling of 1128287874 in words is "one billion, one hundred twenty-eight million, two hundred eighty-seven thousand, eight hundred seventy-four".