424420001 has 2 divisors, whose sum is σ = 424420002. Its totient is φ = 424420000.

The previous prime is 424419991. The next prime is 424420021. The reversal of 424420001 is 100024424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377291776 + 47128225 = 19424^2 + 6865^2 .

It is a cyclic number.

It is not a de Polignac number, because 424420001 - 2²⁶ = 357311137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (424420021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212210000 + 212210001.

It is an arithmetic number, because the mean of its divisors is an integer number (212210001).

Almost surely, 2^424420001 is an apocalyptic number.

It is an amenable number.

424420001 is a deficient number, since it is larger than the sum of its proper divisors (1).

424420001 is an equidigital number, since it uses as much as digits as its factorization.

424420001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 424420001 is about 20601.4562834767. The cubic root of 424420001 is about 751.5051261804.

Adding to 424420001 its reverse (100024424), we get a palindrome (524444425).

The spelling of 424420001 in words is "four hundred twenty-four million, four hundred twenty thousand, one".