28403182080 has 1920 divisors, whose sum is σ = 137271214080. Its totient is φ = 5255331840.

The previous prime is 28403182051. The next prime is 28403182091. The reversal of 28403182080 is 8028130482.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 916231665 + ... + 916231695.

It is an arithmetic number, because the mean of its divisors is an integer number (71495424).

Almost surely, 2^28403182080 is an apocalyptic number.

28403182080 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 28403182080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68635607040).

28403182080 is an abundant number, since it is smaller than the sum of its proper divisors (108868032000).

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

28403182080 is a wasteful number, since it uses less digits than its factorization.

28403182080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The spelling of 28403182080 in words is "twenty-eight billion, four hundred three million, one hundred eighty-two thousand, eighty".