2302728549 has 16 divisors (see below), whose sum is σ = 3350528064. Its totient is φ = 1395132800.

The previous prime is 2302728497. The next prime is 2302728553. The reversal of 2302728549 is 9458272032.

It is a cyclic number.

It is not a de Polignac number, because 2302728549 - 2²⁰ = 2301679973 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2302728549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2302728569) 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 15 ways as a sum of consecutive naturals, for example, 108859 + ... + 128279.

It is an arithmetic number, because the mean of its divisors is an integer number (209408004).

Almost surely, 2^2302728549 is an apocalyptic number.

It is an amenable number.

2302728549 is a deficient number, since it is larger than the sum of its proper divisors (1047799515).

2302728549 is a wasteful number, since it uses less digits than its factorization.

2302728549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23028.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 2302728549 is about 47986.7538910479. The cubic root of 2302728549 is about 1320.5279012246.

The spelling of 2302728549 in words is "two billion, three hundred two million, seven hundred twenty-eight thousand, five hundred forty-nine".