424642609 has 16 divisors (see below), whose sum is σ = 474768000. Its totient is φ = 377443584.

The previous prime is 424642577. The next prime is 424642627. The reversal of 424642609 is 906246424.

It is a cyclic number.

It is not a de Polignac number, because 424642609 - 2⁵ = 424642577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424642639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110844 + ... + 114610.

It is an arithmetic number, because the mean of its divisors is an integer number (29673000).

Almost surely, 2^424642609 is an apocalyptic number.

It is an amenable number.

424642609 is a deficient number, since it is larger than the sum of its proper divisors (50125391).

424642609 is a wasteful number, since it uses less digits than its factorization.

424642609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4152.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 424642609 is about 20606.8583000903. The cubic root of 424642609 is about 751.6364911909.

The spelling of 424642609 in words is "four hundred twenty-four million, six hundred forty-two thousand, six hundred nine".