2345244821 has 2 divisors, whose sum is σ = 2345244822. Its totient is φ = 2345244820.

The previous prime is 2345244743. The next prime is 2345244883. The reversal of 2345244821 is 1284425432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2344980625 + 264196 = 48425^2 + 514^2 .

It is a cyclic number.

It is not a de Polignac number, because 2345244821 - 2¹⁴ = 2345228437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2345244721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1172622410 + 1172622411.

It is an arithmetic number, because the mean of its divisors is an integer number (1172622411).

Almost surely, 2^2345244821 is an apocalyptic number.

It is an amenable number.

2345244821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2345244821 is an equidigital number, since it uses as much as digits as its factorization.

2345244821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 35.

The square root of 2345244821 is about 48427.7278116577. The cubic root of 2345244821 is about 1328.6055486797.

The spelling of 2345244821 in words is "two billion, three hundred forty-five million, two hundred forty-four thousand, eight hundred twenty-one".