424122401 has 2 divisors, whose sum is σ = 424122402. Its totient is φ = 424122400.

The previous prime is 424122397. The next prime is 424122403. The reversal of 424122401 is 104221424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393030625 + 31091776 = 19825^2 + 5576^2 .

It is a cyclic number.

It is not a de Polignac number, because 424122401 - 2² = 424122397 is a prime.

It is a super-2 number, since 2×424122401² = 359759622060009602, which contains 22 as substring.

Together with 424122403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (424122403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212061200 + 212061201.

It is an arithmetic number, because the mean of its divisors is an integer number (212061201).

Almost surely, 2^424122401 is an apocalyptic number.

It is an amenable number.

424122401 is a deficient number, since it is larger than the sum of its proper divisors (1).

424122401 is an equidigital number, since it uses as much as digits as its factorization.

424122401 is an evil number, because the sum of its binary digits is even.

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

The square root of 424122401 is about 20594.2322265240. The cubic root of 424122401 is about 751.3294352620.

Adding to 424122401 its reverse (104221424), we get a palindrome (528343825).

The spelling of 424122401 in words is "four hundred twenty-four million, one hundred twenty-two thousand, four hundred one".