28464841140 has 192 divisors, whose sum is σ = 86124487680. Its totient is φ = 7022561280.

The previous prime is 28464841133. The next prime is 28464841189. The reversal of 28464841140 is 4114846482.

It is a super-2 number, since 2×28464841140² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28464841092 and 28464841101.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 17980789 + ... + 17982371.

It is an arithmetic number, because the mean of its divisors is an integer number (448565040).

Almost surely, 2^28464841140 is an apocalyptic number.

28464841140 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 28464841140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43062243840).

28464841140 is an abundant number, since it is smaller than the sum of its proper divisors (57659646540).

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

28464841140 is a wasteful number, since it uses less digits than its factorization.

28464841140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 42.

The spelling of 28464841140 in words is "twenty-eight billion, four hundred sixty-four million, eight hundred forty-one thousand, one hundred forty".