28053600 has 72 divisors (see below), whose sum is σ = 91322280. Its totient is φ = 7480320.

The previous prime is 28053577. The next prime is 28053607. The reversal of 28053600 is 635082.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28053607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3445 + ... + 8244.

It is an arithmetic number, because the mean of its divisors is an integer number (1268365).

Almost surely, 2^28053600 is an apocalyptic number.

28053600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28053600 is an abundant number, since it is smaller than the sum of its proper divisors (63268680).

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

28053600 is a wasteful number, since it uses less digits than its factorization.

28053600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11712 (or 11699 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 28053600 is about 5296.5649245525. The cubic root of 28053600 is about 303.8525369758.

Adding to 28053600 its reverse (635082), we get a palindrome (28688682).

The spelling of 28053600 in words is "twenty-eight million, fifty-three thousand, six hundred".