2857848840 has 384 divisors, whose sum is σ = 11683077120. Its totient is φ = 588556800.

The previous prime is 2857848839. The next prime is 2857848857. The reversal of 2857848840 is 488487582.

2857848840 is a `hidden beast` number, since 28 + 578 + 4 + 8 + 8 + 40 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3630927 + ... + 3631713.

It is an arithmetic number, because the mean of its divisors is an integer number (30424680).

Almost surely, 2^2857848840 is an apocalyptic number.

2857848840 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 2857848840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5841538560).

2857848840 is an abundant number, since it is smaller than the sum of its proper divisors (8825228280).

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

2857848840 is a wasteful number, since it uses less digits than its factorization.

2857848840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 4587520, while the sum is 54.

The square root of 2857848840 is about 53458.8518395223. The cubic root of 2857848840 is about 1419.1002764411.

The spelling of 2857848840 in words is "two billion, eight hundred fifty-seven million, eight hundred forty-eight thousand, eight hundred forty".