28479824 has 40 divisors (see below), whose sum is σ = 57877248. Its totient is φ = 13559040.

The previous prime is 28479817. The next prime is 28479851. The reversal of 28479824 is 42897482.

It is a super-2 number, since 2×28479824² = 1622200750141952, which contains 22 as substring.

It is a congruent number.

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, 32804 + ... + 33660.

Almost surely, 2^28479824 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 28479824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28938624).

28479824 is an abundant number, since it is smaller than the sum of its proper divisors (29397424).

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

28479824 is a wasteful number, since it uses less digits than its factorization.

28479824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963 (or 957 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 28479824 is about 5336.6491359279. The cubic root of 28479824 is about 305.3836397897.

It can be divided in two parts, 284 and 79824, that added together give a palindrome (80108).

The spelling of 28479824 in words is "twenty-eight million, four hundred seventy-nine thousand, eight hundred twenty-four".