28238427360 has 672 divisors, whose sum is σ = 117580323168. Its totient is φ = 6315356160.

The previous prime is 28238427281. The next prime is 28238427397. The reversal of 28238427360 is 6372483282.

28238427360 is a `hidden beast` number, since 282 + 3 + 8 + 4 + 2 + 7 + 360 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 16678674 + ... + 16680366.

It is an arithmetic number, because the mean of its divisors is an integer number (174970719).

Almost surely, 2^28238427360 is an apocalyptic number.

28238427360 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 28238427360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58790161584).

28238427360 is an abundant number, since it is smaller than the sum of its proper divisors (89341895808).

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

28238427360 is a wasteful number, since it uses less digits than its factorization.

28238427360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750 (or 1727 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 28238427360 in words is "twenty-eight billion, two hundred thirty-eight million, four hundred twenty-seven thousand, three hundred sixty".