28055322 has 24 divisors (see below), whose sum is σ = 63038976. Its totient is φ = 9351612.

The previous prime is 28055317. The next prime is 28055327. The reversal of 28055322 is 22355082.

It is an interprime number because it is at equal distance from previous prime (28055317) and next prime (28055327).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (28055327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28378 + ... + 29349.

It is an arithmetic number, because the mean of its divisors is an integer number (2626624).

Almost surely, 2^28055322 is an apocalyptic number.

28055322 is an abundant number, since it is smaller than the sum of its proper divisors (34983654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28055322 is an equidigital number, since it uses as much as digits as its factorization.

28055322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57744 (or 57732 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 28055322 is about 5296.7274802466. The cubic root of 28055322 is about 303.8587539243.

The spelling of 28055322 in words is "twenty-eight million, fifty-five thousand, three hundred twenty-two".