8949028140 has 288 divisors, whose sum is σ = 32302198656. Its totient is φ = 1982914560.

The previous prime is 8949028073. The next prime is 8949028141. The reversal of 8949028140 is 418209498.

8949028140 is a `hidden beast` number, since 89 + 490 + 2 + 81 + 4 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (8949028141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 910050 + ... + 919830.

It is an arithmetic number, because the mean of its divisors is an integer number (112160412).

Almost surely, 2^8949028140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8949028140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16151099328).

8949028140 is an abundant number, since it is smaller than the sum of its proper divisors (23353170516).

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

8949028140 is a wasteful number, since it uses less digits than its factorization.

8949028140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9849 (or 9844 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 8949028140 is about 94599.3030629719. The cubic root of 8949028140 is about 2076.1495069803.

The spelling of 8949028140 in words is "eight billion, nine hundred forty-nine million, twenty-eight thousand, one hundred forty".