11224840 has 64 divisors (see below), whose sum is σ = 27941760. Its totient is φ = 4024320.

The previous prime is 11224831. The next prime is 11224847. The reversal of 11224840 is 4842211.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (11224847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42549 + ... + 42811.

It is an arithmetic number, because the mean of its divisors is an integer number (436590).

Almost surely, 2^11224840 is an apocalyptic number.

11224840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11224840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13970880).

11224840 is an abundant number, since it is smaller than the sum of its proper divisors (16716920).

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

11224840 is a wasteful number, since it uses less digits than its factorization.

11224840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 378 counting only the distinct ones).

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

The square root of 11224840 is about 3350.3492355275. The cubic root of 11224840 is about 223.9030724350.

The spelling of 11224840 in words is "eleven million, two hundred twenty-four thousand, eight hundred forty".