2840645250 has 48 divisors (see below), whose sum is σ = 7681110840. Its totient is φ = 757504800.

The previous prime is 2840645239. The next prime is 2840645257. The reversal of 2840645250 is 525460482.

It is a happy number.

2840645250 is a `hidden beast` number, since 2 + 8 + 4 + 0 + 645 + 2 + 5 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 610633521 + 2230011729 = 24711^2 + 47223^2 .

It is not an unprimeable number, because it can be changed into a prime (2840645257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 629005 + ... + 633504.

Almost surely, 2^2840645250 is an apocalyptic number.

2840645250 is an abundant number, since it is smaller than the sum of its proper divisors (4840465590).

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

2840645250 is a wasteful number, since it uses less digits than its factorization.

2840645250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262532 (or 1262519 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 2840645250 is about 53297.7039843181. The cubic root of 2840645250 is about 1416.2469914118.

The spelling of 2840645250 in words is "two billion, eight hundred forty million, six hundred forty-five thousand, two hundred fifty".