28422768 has 40 divisors (see below), whose sum is σ = 80102016. Its totient is φ = 8612800.

The previous prime is 28422763. The next prime is 28422811. The reversal of 28422768 is 86722482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28422763) 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, 26388 + ... + 27443.

Almost surely, 2^28422768 is an apocalyptic number.

It is an amenable number.

28422768 is an abundant number, since it is smaller than the sum of its proper divisors (51679248).

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

28422768 is a wasteful number, since it uses less digits than its factorization.

28422768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53853 (or 53847 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 28422768 is about 5331.3007793596. The cubic root of 28422768 is about 305.1795699711.

The spelling of 28422768 in words is "twenty-eight million, four hundred twenty-two thousand, seven hundred sixty-eight".