28457352 has 256 divisors, whose sum is σ = 103680000. Its totient is φ = 7015680.

The previous prime is 28457347. The next prime is 28457413. The reversal of 28457352 is 25375482.

28457352 is a `hidden beast` number, since 2 + 84 + 573 + 5 + 2 = 666.

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 63 ways as a sum of consecutive naturals, for example, 482299 + ... + 482357.

It is an arithmetic number, because the mean of its divisors is an integer number (405000).

Almost surely, 2^28457352 is an apocalyptic number.

28457352 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 28457352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51840000).

28457352 is an abundant number, since it is smaller than the sum of its proper divisors (75222648).

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

28457352 is a wasteful number, since it uses less digits than its factorization.

28457352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 111 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 28457352 is about 5334.5432794195. The cubic root of 28457352 is about 305.3032976860.

The spelling of 28457352 in words is "twenty-eight million, four hundred fifty-seven thousand, three hundred fifty-two".