11128878 has 12 divisors (see below), whose sum is σ = 24112608. Its totient is φ = 3709620.

The previous prime is 11128861. The next prime is 11128879. The reversal of 11128878 is 87882111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11128879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 309118 + ... + 309153.

It is an arithmetic number, because the mean of its divisors is an integer number (2009384).

Almost surely, 2^11128878 is an apocalyptic number.

11128878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11128878 is an abundant number, since it is smaller than the sum of its proper divisors (12983730).

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

11128878 is a wasteful number, since it uses less digits than its factorization.

11128878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618279 (or 618276 counting only the distinct ones).

The product of its digits is 7168, while the sum is 36.

The square root of 11128878 is about 3335.9973021572. The cubic root of 11128878 is about 223.2631907643.

The spelling of 11128878 in words is "eleven million, one hundred twenty-eight thousand, eight hundred seventy-eight".