11228736 has 56 divisors (see below), whose sum is σ = 29955744. Its totient is φ = 3712000.

The previous prime is 11228689. The next prime is 11228743. The reversal of 11228736 is 63782211.

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, 44611 + ... + 44861.

It is an arithmetic number, because the mean of its divisors is an integer number (534924).

Almost surely, 2^11228736 is an apocalyptic number.

11228736 is a gapful number since it is divisible by the number (16) 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 11228736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14977872).

11228736 is an abundant number, since it is smaller than the sum of its proper divisors (18727008).

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

11228736 is a wasteful number, since it uses less digits than its factorization.

11228736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 489 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 11228736 is about 3350.9306170078. The cubic root of 11228736 is about 223.9289740801.

The spelling of 11228736 in words is "eleven million, two hundred twenty-eight thousand, seven hundred thirty-six".