28418183040 has 256 divisors, whose sum is σ = 98264678400. Its totient is φ = 6944071680.

The previous prime is 28418183039. The next prime is 28418183081. The reversal of 28418183040 is 4038181482.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 28418183040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3465345 + ... + 3473535.

It is an arithmetic number, because the mean of its divisors is an integer number (383846400).

Almost surely, 2^28418183040 is an apocalyptic number.

28418183040 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 28418183040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49132339200).

28418183040 is an abundant number, since it is smaller than the sum of its proper divisors (69846495360).

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

28418183040 is a wasteful number, since it uses less digits than its factorization.

28418183040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8365 (or 8353 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The spelling of 28418183040 in words is "twenty-eight billion, four hundred eighteen million, one hundred eighty-three thousand, forty".