28235152 has 40 divisors (see below), whose sum is σ = 60165792. Its totient is φ = 12729600.

The previous prime is 28235149. The next prime is 28235171. The reversal of 28235152 is 25153282.

It is a self number, because there is not a number n which added to its sum of digits gives 28235152.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23527 + ... + 24697.

Almost surely, 2^28235152 is an apocalyptic number.

28235152 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 28235152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30082896).

28235152 is an abundant number, since it is smaller than the sum of its proper divisors (31930640).

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

28235152 is a wasteful number, since it uses less digits than its factorization.

28235152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327 (or 1321 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 28235152 is about 5313.6759404390. The cubic root of 28235152 is about 304.5065999075.

The spelling of 28235152 in words is "twenty-eight million, two hundred thirty-five thousand, one hundred fifty-two".