2570843640 has 128 divisors (see below), whose sum is σ = 8380569600. Its totient is φ = 628508160.

The previous prime is 2570843629. The next prime is 2570843663. The reversal of 2570843640 is 463480752.

It is a happy number.

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, 52494 + ... + 88866.

It is an arithmetic number, because the mean of its divisors is an integer number (65473200).

Almost surely, 2^2570843640 is an apocalyptic number.

2570843640 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 2570843640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4190284800).

2570843640 is an abundant number, since it is smaller than the sum of its proper divisors (5809725960).

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

2570843640 is a wasteful number, since it uses less digits than its factorization.

2570843640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36437 (or 36433 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 2570843640 is about 50703.4874540204. The cubic root of 2570843640 is about 1369.9095328047.

The spelling of 2570843640 in words is "two billion, five hundred seventy million, eight hundred forty-three thousand, six hundred forty".