11228401 has 4 divisors (see below), whose sum is σ = 11256804. Its totient is φ = 11200000.

The previous prime is 11228369. The next prime is 11228447. The reversal of 11228401 is 10482211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10482211 = 37 ⋅283303.

It can be written as a sum of positive squares in 2 ways, for example, as 9928801 + 1299600 = 3151^2 + 1140^2 .

It is a cyclic number.

It is not a de Polignac number, because 11228401 - 2⁵ = 11228369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11226401) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13600 + ... + 14401.

It is an arithmetic number, because the mean of its divisors is an integer number (2814201).

Almost surely, 2^11228401 is an apocalyptic number.

It is an amenable number.

11228401 is a deficient number, since it is larger than the sum of its proper divisors (28403).

11228401 is an equidigital number, since it uses as much as digits as its factorization.

11228401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28402.

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

The square root of 11228401 is about 3350.8806305209. The cubic root of 11228401 is about 223.9267471464.

The spelling of 11228401 in words is "eleven million, two hundred twenty-eight thousand, four hundred one".