11278988 has 24 divisors (see below), whose sum is σ = 22848000. Its totient is φ = 4771728.

The previous prime is 11278979. The next prime is 11279003. The reversal of 11278988 is 88987211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338 + ... + 4761.

It is an arithmetic number, because the mean of its divisors is an integer number (952000).

Almost surely, 2^11278988 is an apocalyptic number.

It is an amenable number.

11278988 is an abundant number, since it is smaller than the sum of its proper divisors (11569012).

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

11278988 is a wasteful number, since it uses less digits than its factorization.

11278988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5189 (or 5187 counting only the distinct ones).

The product of its digits is 64512, while the sum is 44.

The square root of 11278988 is about 3358.4204620625. The cubic root of 11278988 is about 224.2625270207.

The spelling of 11278988 in words is "eleven million, two hundred seventy-eight thousand, nine hundred eighty-eight".