2344020421 has 2 divisors, whose sum is σ = 2344020422. Its totient is φ = 2344020420.

The previous prime is 2344020407. The next prime is 2344020433. The reversal of 2344020421 is 1240204432.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2325650625 + 18369796 = 48225^2 + 4286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2344020421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2344020392 and 2344020401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2344020461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1172010210 + 1172010211.

It is an arithmetic number, because the mean of its divisors is an integer number (1172010211).

Almost surely, 2^2344020421 is an apocalyptic number.

It is an amenable number.

2344020421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2344020421 is an equidigital number, since it uses as much as digits as its factorization.

2344020421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2344020421 is about 48415.0846431151. The cubic root of 2344020421 is about 1328.3742966590.

Adding to 2344020421 its reverse (1240204432), we get a palindrome (3584224853).

The spelling of 2344020421 in words is "two billion, three hundred forty-four million, twenty thousand, four hundred twenty-one".