422407 has 2 divisors, whose sum is σ = 422408. Its totient is φ = 422406.

The previous prime is 422393. The next prime is 422431. The reversal of 422407 is 704224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422407 is a prime.

422407 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211203 + 211204.

It is an arithmetic number, because the mean of its divisors is an integer number (211204).

2⁴²²⁴⁰⁷ is an apocalyptic number.

422407 is a deficient number, since it is larger than the sum of its proper divisors (1).

422407 is an equidigital number, since it uses as much as digits as its factorization.

422407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 422407 is about 649.9284576013. The cubic root of 422407 is about 75.0315126834.

The spelling of 422407 in words is "four hundred twenty-two thousand, four hundred seven", and thus it is an iban number.