2430066421 has 2 divisors, whose sum is σ = 2430066422. Its totient is φ = 2430066420.

The previous prime is 2430066391. The next prime is 2430066461. The reversal of 2430066421 is 1246600342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2372761521 + 57304900 = 48711^2 + 7570^2 .

It is a cyclic number.

It is not a de Polignac number, because 2430066421 - 2⁷ = 2430066293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2430066421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2430066461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215033210 + 1215033211.

It is an arithmetic number, because the mean of its divisors is an integer number (1215033211).

Almost surely, 2^2430066421 is an apocalyptic number.

It is an amenable number.

2430066421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2430066421 is an equidigital number, since it uses as much as digits as its factorization.

2430066421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 2430066421 is about 49295.7038797500. The cubic root of 2430066421 is about 1344.4336732129.

Adding to 2430066421 its reverse (1246600342), we get a palindrome (3676666763).

The spelling of 2430066421 in words is "two billion, four hundred thirty million, sixty-six thousand, four hundred twenty-one".