11428222 has 16 divisors (see below), whose sum is σ = 18611712. Its totient is φ = 5231520.

The previous prime is 11428201. The next prime is 11428237. The reversal of 11428222 is 22282411.

It is a junction number, because it is equal to n+sod(n) for n = 11428193 and 11428202.

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, 1572 + ... + 5032.

It is an arithmetic number, because the mean of its divisors is an integer number (1163232).

Almost surely, 2^11428222 is an apocalyptic number.

11428222 is a deficient number, since it is larger than the sum of its proper divisors (7183490).

11428222 is a wasteful number, since it uses less digits than its factorization.

11428222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603.

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

The square root of 11428222 is about 3380.5653373363. The cubic root of 11428222 is about 225.2472803967.

The spelling of 11428222 in words is "eleven million, four hundred twenty-eight thousand, two hundred twenty-two".