28422672 has 20 divisors (see below), whose sum is σ = 73425360. Its totient is φ = 9474208.

The previous prime is 28422671. The next prime is 28422683. The reversal of 28422672 is 27622482.

It is not an unprimeable number, because it can be changed into a prime (28422671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296022 + ... + 296117.

It is an arithmetic number, because the mean of its divisors is an integer number (3671268).

Almost surely, 2^28422672 is an apocalyptic number.

It is an amenable number.

28422672 is an abundant number, since it is smaller than the sum of its proper divisors (45002688).

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

28422672 is a wasteful number, since it uses less digits than its factorization.

28422672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592150 (or 592144 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 28422672 is about 5331.2917759207. The cubic root of 28422672 is about 305.1792263819.

The spelling of 28422672 in words is "twenty-eight million, four hundred twenty-two thousand, six hundred seventy-two".