28331424000 has 864 divisors, whose sum is σ = 115352240640. Its totient is φ = 6842880000.

The previous prime is 28331423983. The next prime is 28331424019. The reversal of 28331424000 is 42413382.

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 (27).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 104543865 + ... + 104544135.

Almost surely, 2^28331424000 is an apocalyptic number.

28331424000 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 28331424000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57676120320).

28331424000 is an abundant number, since it is smaller than the sum of its proper divisors (87020816640).

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

28331424000 is a wasteful number, since it uses less digits than its factorization.

28331424000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 28331424000 its reverse (42413382), we get a palindrome (28373837382).

The spelling of 28331424000 in words is "twenty-eight billion, three hundred thirty-one million, four hundred twenty-four thousand".