424409407 has 2 divisors, whose sum is σ = 424409408. Its totient is φ = 424409406.

The previous prime is 424409399. The next prime is 424409411. The reversal of 424409407 is 704904424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424409407 - 2³ = 424409399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424409497) 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, 212204703 + 212204704.

It is an arithmetic number, because the mean of its divisors is an integer number (212204704).

Almost surely, 2^424409407 is an apocalyptic number.

424409407 is a deficient number, since it is larger than the sum of its proper divisors (1).

424409407 is an equidigital number, since it uses as much as digits as its factorization.

424409407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 424409407 is about 20601.1991641263. The cubic root of 424409407 is about 751.4988733243.

The spelling of 424409407 in words is "four hundred twenty-four million, four hundred nine thousand, four hundred seven".