28862800 has 60 divisors (see below), whose sum is σ = 70575840. Its totient is φ = 11340160.

The previous prime is 28862797. The next prime is 28862807. The reversal of 28862800 is 826882.

It is a happy number.

It is a super-2 number, since 2×28862800² = 1666122447680000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28862807) 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 11 ways as a sum of consecutive naturals, for example, 22989 + ... + 24211.

It is an arithmetic number, because the mean of its divisors is an integer number (1176264).

Almost surely, 2^28862800 is an apocalyptic number.

28862800 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 28862800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35287920).

28862800 is an abundant number, since it is smaller than the sum of its proper divisors (41713040).

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

28862800 is a wasteful number, since it uses less digits than its factorization.

28862800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300 (or 1289 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 28862800 is about 5372.4110043816. The cubic root of 28862800 is about 306.7464085846.

The spelling of 28862800 in words is "twenty-eight million, eight hundred sixty-two thousand, eight hundred".