28322176 has 32 divisors (see below), whose sum is σ = 56793600. Its totient is φ = 14068224.

The previous prime is 28322111. The next prime is 28322191. The reversal of 28322176 is 67122382.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21505 + ... + 22783.

It is an arithmetic number, because the mean of its divisors is an integer number (1774800).

Almost surely, 2^28322176 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 28322176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28396800).

28322176 is an abundant number, since it is smaller than the sum of its proper divisors (28471424).

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

28322176 is a wasteful number, since it uses less digits than its factorization.

28322176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466 (or 1454 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 28322176 is about 5321.8583220526. The cubic root of 28322176 is about 304.8191205573.

The spelling of 28322176 in words is "twenty-eight million, three hundred twenty-two thousand, one hundred seventy-six".