2222428 has 24 divisors (see below), whose sum is σ = 4249280. Its totient is φ = 1010880.

The previous prime is 2222387. The next prime is 2222443. The reversal of 2222428 is 8242222.

It is a happy number.

2222428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2222399 and 2222408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3838 + ... + 4378.

2^2222428 is an apocalyptic number.

It is an amenable number.

2222428 is a deficient number, since it is larger than the sum of its proper divisors (2026852).

2222428 is a wasteful number, since it uses less digits than its factorization.

2222428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 635 counting only the distinct ones).

The product of its digits is 1024, while the sum is 22.

The square root of 2222428 is about 1490.7810033670. The cubic root of 2222428 is about 130.4996158785.

The spelling of 2222428 in words is "two million, two hundred twenty-two thousand, four hundred twenty-eight".