2302289749 has 4 divisors (see below), whose sum is σ = 2302415136. Its totient is φ = 2302164364.

The previous prime is 2302289747. The next prime is 2302289779. The reversal of 2302289749 is 9479822032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2302289749 - 2¹ = 2302289747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2302289699 and 2302289708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2302289747) 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, 29179 + ... + 73864.

It is an arithmetic number, because the mean of its divisors is an integer number (575603784).

Almost surely, 2^2302289749 is an apocalyptic number.

It is an amenable number.

2302289749 is a deficient number, since it is larger than the sum of its proper divisors (125387).

2302289749 is a wasteful number, since it uses less digits than its factorization.

2302289749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125386.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 2302289749 is about 47982.1815781650. The cubic root of 2302289749 is about 1320.4440174840. Note that the first 3 decimals are identical.

The spelling of 2302289749 in words is "two billion, three hundred two million, two hundred eighty-nine thousand, seven hundred forty-nine".