28498839040 has 120 divisors (see below), whose sum is σ = 79486756272. Its totient is φ = 9770987520.

The previous prime is 28498839037. The next prime is 28498839073. The reversal of 28498839040 is 4093889482.

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 11 ways as a sum of consecutive naturals, for example, 11845 + ... + 239035.

Almost surely, 2^28498839040 is an apocalyptic number.

28498839040 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 28498839040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39743378136).

28498839040 is an abundant number, since it is smaller than the sum of its proper divisors (50987917232).

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

28498839040 is an equidigital number, since it uses as much as digits as its factorization.

28498839040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227228 (or 227205 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 55.

The spelling of 28498839040 in words is "twenty-eight billion, four hundred ninety-eight million, eight hundred thirty-nine thousand, forty".