11448220 has 24 divisors (see below), whose sum is σ = 27476064. Its totient is φ = 3925056.

The previous prime is 11448211. The next prime is 11448263. The reversal of 11448220 is 2284411.

11448220 = 173² + 174² + ... + 340².

It is a junction number, because it is equal to n+sod(n) for n = 11448191 and 11448200.

It is a congruent number.

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, 40747 + ... + 41026.

It is an arithmetic number, because the mean of its divisors is an integer number (1144836).

Almost surely, 2^11448220 is an apocalyptic number.

11448220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11448220 is an abundant number, since it is smaller than the sum of its proper divisors (16027844).

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

11448220 is a wasteful number, since it uses less digits than its factorization.

11448220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81789 (or 81787 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 11448220 is about 3383.5218338294. The cubic root of 11448220 is about 225.3785889597.

The spelling of 11448220 in words is "eleven million, four hundred forty-eight thousand, two hundred twenty".