28858118400 has 864 divisors, whose sum is σ = 113325246720. Its totient is φ = 7169310720.

The previous prime is 28858118371. The next prime is 28858118407. The reversal of 28858118400 is 481185882.

28858118400 is a `hidden beast` number, since 2 + 88 + 58 + 118 + 400 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28858118407) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 210643132 + ... + 210643268.

It is an arithmetic number, because the mean of its divisors is an integer number (131163480).

Almost surely, 2^28858118400 is an apocalyptic number.

28858118400 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 28858118400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56662623360).

28858118400 is an abundant number, since it is smaller than the sum of its proper divisors (84467128320).

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

28858118400 is a wasteful number, since it uses less digits than its factorization.

28858118400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 45.

The spelling of 28858118400 in words is "twenty-eight billion, eight hundred fifty-eight million, one hundred eighteen thousand, four hundred".