28822472 has 32 divisors (see below), whose sum is σ = 62467200. Its totient is φ = 12211584.

The previous prime is 28822459. The next prime is 28822481. The reversal of 28822472 is 27422882.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2093 + ... + 7875.

It is an arithmetic number, because the mean of its divisors is an integer number (1952100).

Almost surely, 2^28822472 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 28822472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31233600).

28822472 is an abundant number, since it is smaller than the sum of its proper divisors (33644728).

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

28822472 is a wasteful number, since it uses less digits than its factorization.

28822472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5885 (or 5881 counting only the distinct ones).

The product of its digits is 28672, while the sum is 35.

The square root of 28822472 is about 5368.6564427238. The cubic root of 28822472 is about 306.6034767934.

It can be divided in two parts, 288 and 22472, that multiplied together give a square (6471936 = 2544²).

The spelling of 28822472 in words is "twenty-eight million, eight hundred twenty-two thousand, four hundred seventy-two".