28442322 has 24 divisors (see below), whose sum is σ = 61837776. Its totient is φ = 9448056.

The previous prime is 28442321. The next prime is 28442347. The reversal of 28442322 is 22324482.

It is not an unprimeable number, because it can be changed into a prime (28442321) 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, 2953 + ... + 8099.

It is an arithmetic number, because the mean of its divisors is an integer number (2576574).

Almost surely, 2^28442322 is an apocalyptic number.

28442322 is an abundant number, since it is smaller than the sum of its proper divisors (33395454).

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

28442322 is a wasteful number, since it uses less digits than its factorization.

28442322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462 (or 5459 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 28442322 is about 5333.1343504547. The cubic root of 28442322 is about 305.2495386825.

The spelling of 28442322 in words is "twenty-eight million, four hundred forty-two thousand, three hundred twenty-two".