28452000 has 96 divisors (see below), whose sum is σ = 93248064. Its totient is φ = 7584000.

The previous prime is 28451993. The next prime is 28452007. The reversal of 28452000 is 25482.

It is an interprime number because it is at equal distance from previous prime (28451993) and next prime (28452007).

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (28452007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10815 + ... + 13185.

It is an arithmetic number, because the mean of its divisors is an integer number (971334).

Almost surely, 2^28452000 is an apocalyptic number.

28452000 is a gapful number since it is divisible by the number (20) 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 28452000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46624032).

28452000 is an abundant number, since it is smaller than the sum of its proper divisors (64796064).

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

28452000 is a wasteful number, since it uses less digits than its factorization.

28452000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399 (or 2381 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 28452000 is about 5334.0416196352. The cubic root of 28452000 is about 305.2841569300.

Adding to 28452000 its reverse (25482), we get a palindrome (28477482).

The spelling of 28452000 in words is "twenty-eight million, four hundred fifty-two thousand".