28455152 has 40 divisors (see below), whose sum is σ = 60746112. Its totient is φ = 12804800.

The previous prime is 28455137. The next prime is 28455157. The reversal of 28455152 is 25155482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28455157) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18077 + ... + 19587.

Almost surely, 2^28455152 is an apocalyptic number.

28455152 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 28455152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30373056).

28455152 is an abundant number, since it is smaller than the sum of its proper divisors (32290960).

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

28455152 is a wasteful number, since it uses less digits than its factorization.

28455152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637 (or 1631 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 28455152 is about 5334.3370722143. The cubic root of 28455152 is about 305.2954299527.

It can be divided in two parts, 2845 and 5152, that added together give a palindrome (7997).

The spelling of 28455152 in words is "twenty-eight million, four hundred fifty-five thousand, one hundred fifty-two".