424725439 has 2 divisors, whose sum is σ = 424725440. Its totient is φ = 424725438.

The previous prime is 424725421. The next prime is 424725443. The reversal of 424725439 is 934527424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424725439 - 2⁵ = 424725407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424725419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212362719 + 212362720.

It is an arithmetic number, because the mean of its divisors is an integer number (212362720).

Almost surely, 2^424725439 is an apocalyptic number.

424725439 is a deficient number, since it is larger than the sum of its proper divisors (1).

424725439 is an equidigital number, since it uses as much as digits as its factorization.

424725439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 40.

The square root of 424725439 is about 20608.8679698813. The cubic root of 424725439 is about 751.6853589538.

The spelling of 424725439 in words is "four hundred twenty-four million, seven hundred twenty-five thousand, four hundred thirty-nine".