28534222 has 8 divisors (see below), whose sum is σ = 42836472. Its totient is φ = 14255400.

The previous prime is 28534213. The next prime is 28534243. The reversal of 28534222 is 22243582.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2404 + ... + 7927.

It is an arithmetic number, because the mean of its divisors is an integer number (5354559).

Almost surely, 2^28534222 is an apocalyptic number.

28534222 is a deficient number, since it is larger than the sum of its proper divisors (14302250).

28534222 is a wasteful number, since it uses less digits than its factorization.

28534222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11714.

The product of its digits is 7680, while the sum is 28.

The square root of 28534222 is about 5341.7433483836. The cubic root of 28534222 is about 305.5779492030.

The spelling of 28534222 in words is "twenty-eight million, five hundred thirty-four thousand, two hundred twenty-two".