28422708 has 48 divisors (see below), whose sum is σ = 73926720. Its totient is φ = 8446464.

The previous prime is 28422707. The next prime is 28422721. The reversal of 28422708 is 80722482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28422701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210 + ... + 7542.

It is an arithmetic number, because the mean of its divisors is an integer number (1540140).

Almost surely, 2^28422708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28422708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36963360).

28422708 is an abundant number, since it is smaller than the sum of its proper divisors (45504012).

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

28422708 is a wasteful number, since it uses less digits than its factorization.

28422708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7376 (or 7374 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 28422708 is about 5331.2951522121. The cubic root of 28422708 is about 305.1793552279.

The spelling of 28422708 in words is "twenty-eight million, four hundred twenty-two thousand, seven hundred eight".