2302721389 has 2 divisors, whose sum is σ = 2302721390. Its totient is φ = 2302721388.

The previous prime is 2302721353. The next prime is 2302721413. The reversal of 2302721389 is 9831272032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2214455364 + 88266025 = 47058^2 + 9395^2 .

It is a cyclic number.

It is not a de Polignac number, because 2302721389 - 2¹⁵ = 2302688621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2302721329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1151360694 + 1151360695.

It is an arithmetic number, because the mean of its divisors is an integer number (1151360695).

Almost surely, 2^2302721389 is an apocalyptic number.

It is an amenable number.

2302721389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2302721389 is an equidigital number, since it uses as much as digits as its factorization.

2302721389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 2302721389 is about 47986.6792870688. The cubic root of 2302721389 is about 1320.5265325599.

The spelling of 2302721389 in words is "two billion, three hundred two million, seven hundred twenty-one thousand, three hundred eighty-nine".