28184835840 has 576 divisors, whose sum is σ = 111937158144. Its totient is φ = 5895880704.

The previous prime is 28184835769. The next prime is 28184835841. The reversal of 28184835840 is 4853848182.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28184835841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16906687 + ... + 16908353.

It is an arithmetic number, because the mean of its divisors is an integer number (194335344).

Almost surely, 2^28184835840 is an apocalyptic number.

28184835840 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 28184835840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55968579072).

28184835840 is an abundant number, since it is smaller than the sum of its proper divisors (83752322304).

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

28184835840 is a wasteful number, since it uses less digits than its factorization.

28184835840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 51.

The spelling of 28184835840 in words is "twenty-eight billion, one hundred eighty-four million, eight hundred thirty-five thousand, eight hundred forty".