2885728730 has 8 divisors (see below), whose sum is σ = 5194311732. Its totient is φ = 1154291488.

The previous prime is 2885728711. The next prime is 2885728739. The reversal of 2885728730 is 378275882.

It can be written as a sum of positive squares in 2 ways, for example, as 2850812449 + 34916281 = 53393^2 + 5909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2885728739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144286427 + ... + 144286446.

Almost surely, 2^2885728730 is an apocalyptic number.

2885728730 is a deficient number, since it is larger than the sum of its proper divisors (2308583002).

2885728730 is a wasteful number, since it uses less digits than its factorization.

2885728730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288572880.

The product of its (nonzero) digits is 1505280, while the sum is 50.

The square root of 2885728730 is about 53718.9792345313. The cubic root of 2885728730 is about 1423.7000526162.

The spelling of 2885728730 in words is "two billion, eight hundred eighty-five million, seven hundred twenty-eight thousand, seven hundred thirty".