2870853840 has 200 divisors, whose sum is σ = 10315400040. Its totient is φ = 739113984.

The previous prime is 2870853833. The next prime is 2870853847. The reversal of 2870853840 is 483580782.

2870853840 is a `hidden beast` number, since 2 + 8 + 70 + 8 + 538 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (2870853833) and next prime (2870853847).

It can be written as a sum of positive squares in 4 ways, for example, as 20575296 + 2850278544 = 4536^2 + 53388^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2870853847) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 180282 + ... + 195558.

Almost surely, 2^2870853840 is an apocalyptic number.

2870853840 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 2870853840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5157700020).

2870853840 is an abundant number, since it is smaller than the sum of its proper divisors (7444546200).

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

2870853840 is a wasteful number, since it uses less digits than its factorization.

2870853840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15331 (or 15316 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 2870853840 is about 53580.3493829594. The cubic root of 2870853840 is about 1421.2496174490.

The spelling of 2870853840 in words is "two billion, eight hundred seventy million, eight hundred fifty-three thousand, eight hundred forty".