28452396 has 48 divisors (see below), whose sum is σ = 77172480. Its totient is φ = 7990080.

The previous prime is 28452377. The next prime is 28452397. The reversal of 28452396 is 69325482.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28452397) 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 15 ways as a sum of consecutive naturals, for example, 2086 + ... + 7826.

It is an arithmetic number, because the mean of its divisors is an integer number (1607760).

Almost surely, 2^28452396 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 28452396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38586240).

28452396 is an abundant number, since it is smaller than the sum of its proper divisors (48720084).

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

28452396 is a wasteful number, since it uses less digits than its factorization.

28452396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5814 (or 5812 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 28452396 is about 5334.0787395763. The cubic root of 28452396 is about 305.2855732565.

The spelling of 28452396 in words is "twenty-eight million, four hundred fifty-two thousand, three hundred ninety-six".