28333152 has 120 divisors (see below), whose sum is σ = 88365816. Its totient is φ = 8875008.

The previous prime is 28333147. The next prime is 28333159. The reversal of 28333152 is 25133382.

28333152 is a `hidden beast` number, since 283 + 331 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28333159) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43743 + ... + 44385.

Almost surely, 2^28333152 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 28333152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44182908).

28333152 is an abundant number, since it is smaller than the sum of its proper divisors (60032664).

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

28333152 is a wasteful number, since it uses less digits than its factorization.

28333152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 665 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 28333152 is about 5322.8894408958. The cubic root of 28333152 is about 304.8584920915.

The spelling of 28333152 in words is "twenty-eight million, three hundred thirty-three thousand, one hundred fifty-two".