28094342400 has 864 divisors, whose sum is σ = 111520640000. Its totient is φ = 6897623040.

The previous prime is 28094342377. The next prime is 28094342407. The reversal of 28094342400 is 424349082.

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 (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28094342407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 141177501 + ... + 141177699.

Almost surely, 2^28094342400 is an apocalyptic number.

28094342400 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 28094342400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55760320000).

28094342400 is an abundant number, since it is smaller than the sum of its proper divisors (83426297600).

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

28094342400 is a wasteful number, since it uses less digits than its factorization.

28094342400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 28094342400 in words is "twenty-eight billion, ninety-four million, three hundred forty-two thousand, four hundred".