28658422 has 16 divisors (see below), whose sum is σ = 48731760. Its totient is φ = 12530592.

The previous prime is 28658419. The next prime is 28658423. The reversal of 28658422 is 22485682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28658423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28513 + ... + 29500.

It is an arithmetic number, because the mean of its divisors is an integer number (3045735).

Almost surely, 2^28658422 is an apocalyptic number.

28658422 is a deficient number, since it is larger than the sum of its proper divisors (20073338).

28658422 is a wasteful number, since it uses less digits than its factorization.

28658422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58047.

The product of its digits is 61440, while the sum is 37.

The square root of 28658422 is about 5353.3561435795. The cubic root of 28658422 is about 306.0206672928.

The spelling of 28658422 in words is "twenty-eight million, six hundred fifty-eight thousand, four hundred twenty-two".