1002424421 has 2 divisors, whose sum is σ = 1002424422. Its totient is φ = 1002424420.

The previous prime is 1002424417. The next prime is 1002424427. The reversal of 1002424421 is 1244242001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 977812900 + 24611521 = 31270^2 + 4961^2 .

It is an emirp because it is prime and its reverse (1244242001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002424421 - 2² = 1002424417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002424393 and 1002424402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002424427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501212210 + 501212211.

It is an arithmetic number, because the mean of its divisors is an integer number (501212211).

Almost surely, 2^1002424421 is an apocalyptic number.

It is an amenable number.

1002424421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002424421 is an equidigital number, since it uses as much as digits as its factorization.

1002424421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1002424421 is about 31661.0868575291. The cubic root of 1002424421 is about 1000.8074881208.

Adding to 1002424421 its reverse (1244242001), we get a palindrome (2246666422).

The spelling of 1002424421 in words is "one billion, two million, four hundred twenty-four thousand, four hundred twenty-one".