28655422 has 16 divisors (see below), whose sum is σ = 44595360. Its totient is φ = 13793248.

The previous prime is 28655413. The next prime is 28655437. The reversal of 28655422 is 22455682.

It is a super-2 number, since 2×28655422² = 1642266419996168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31863 + ... + 32749.

It is an arithmetic number, because the mean of its divisors is an integer number (2787210).

Almost surely, 2^28655422 is an apocalyptic number.

28655422 is a deficient number, since it is larger than the sum of its proper divisors (15939938).

28655422 is a wasteful number, since it uses less digits than its factorization.

28655422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475.

The product of its digits is 38400, while the sum is 34.

The square root of 28655422 is about 5353.0759381873. The cubic root of 28655422 is about 306.0099887095.

The spelling of 28655422 in words is "twenty-eight million, six hundred fifty-five thousand, four hundred twenty-two".