11148220 has 24 divisors (see below), whose sum is σ = 24167808. Its totient is φ = 4315200.

The previous prime is 11148199. The next prime is 11148233. The reversal of 11148220 is 2284111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8371 + ... + 9610.

It is an arithmetic number, because the mean of its divisors is an integer number (1006992).

Almost surely, 2^11148220 is an apocalyptic number.

11148220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11148220 is an abundant number, since it is smaller than the sum of its proper divisors (13019588).

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

11148220 is a wasteful number, since it uses less digits than its factorization.

11148220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18021 (or 18019 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 11148220 is about 3338.8950268015. The cubic root of 11148220 is about 223.3924597789.

The spelling of 11148220 in words is "eleven million, one hundred forty-eight thousand, two hundred twenty".