11229280 has 24 divisors (see below), whose sum is σ = 26529552. Its totient is φ = 4491648.

The previous prime is 11229227. The next prime is 11229301. The reversal of 11229280 is 8292211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34932 + ... + 35251.

It is an arithmetic number, because the mean of its divisors is an integer number (1105398).

Almost surely, 2^11229280 is an apocalyptic number.

11229280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11229280 is an abundant number, since it is smaller than the sum of its proper divisors (15300272).

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

11229280 is an equidigital number, since it uses as much as digits as its factorization.

11229280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70198 (or 70190 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 11229280 is about 3351.0117875054. The cubic root of 11229280 is about 223.9325902602.

It can be divided in two parts, 112 and 29280, that added together give a palindrome (29392).

The spelling of 11229280 in words is "eleven million, two hundred twenty-nine thousand, two hundred eighty".