28916352 has 80 divisors (see below), whose sum is σ = 86085450. Its totient is φ = 9635328.

The previous prime is 28916333. The next prime is 28916369. The reversal of 28916352 is 25361982.

It can be written as a sum of positive squares in only one way, i.e., 23270976 + 5645376 = 4824^2 + 2376^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8974 + ... + 11762.

Almost surely, 2^28916352 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 28916352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43042725).

28916352 is an abundant number, since it is smaller than the sum of its proper divisors (57169098).

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

28916352 is an equidigital number, since it uses as much as digits as its factorization.

28916352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815 (or 2794 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 28916352 is about 5377.3926767533. The cubic root of 28916352 is about 306.9360036650.

It can be divided in two parts, 289 and 16352, that added together give a square (16641 = 129²).

The spelling of 28916352 in words is "twenty-eight million, nine hundred sixteen thousand, three hundred fifty-two".