2800729240 has 32 divisors (see below), whose sum is σ = 6307210080. Its totient is φ = 1119301632.

The previous prime is 2800729237. The next prime is 2800729241. The reversal of 2800729240 is 429270082.

It is a junction number, because it is equal to n+sod(n) for n = 2800729196 and 2800729205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2800729241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15757 + ... + 76483.

It is an arithmetic number, because the mean of its divisors is an integer number (197100315).

Almost surely, 2^2800729240 is an apocalyptic number.

2800729240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2800729240 is an abundant number, since it is smaller than the sum of its proper divisors (3506480840).

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

2800729240 is a wasteful number, since it uses less digits than its factorization.

2800729240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61891 (or 61887 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2800729240 is about 52921.9164430012. The cubic root of 2800729240 is about 1409.5820970329.

The spelling of 2800729240 in words is "two billion, eight hundred million, seven hundred twenty-nine thousand, two hundred forty".