28908352 has 42 divisors (see below), whose sum is σ = 63070994. Its totient is φ = 13136640.

The previous prime is 28908343. The next prime is 28908409. The reversal of 28908352 is 25380982.

It can be written as a sum of positive squares in only one way, i.e., 25160256 + 3748096 = 5016^2 + 1936^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 5878 + ... + 9610.

Almost surely, 2^28908352 is an apocalyptic number.

28908352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28908352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31535497).

28908352 is an abundant number, since it is smaller than the sum of its proper divisors (34162642).

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

28908352 is a wasteful number, since it uses less digits than its factorization.

28908352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767 (or 3746 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 28908352 is about 5376.6487703773. The cubic root of 28908352 is about 306.9076954088.

The spelling of 28908352 in words is "twenty-eight million, nine hundred eight thousand, three hundred fifty-two".