424641409 has 4 divisors (see below), whose sum is σ = 426512304. Its totient is φ = 422770516.

The previous prime is 424641407. The next prime is 424641439. The reversal of 424641409 is 904146424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 424641409 - 2¹ = 424641407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424641407) 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 3 ways as a sum of consecutive naturals, for example, 935107 + ... + 935560.

It is an arithmetic number, because the mean of its divisors is an integer number (106628076).

Almost surely, 2^424641409 is an apocalyptic number.

It is an amenable number.

424641409 is a deficient number, since it is larger than the sum of its proper divisors (1870895).

424641409 is a wasteful number, since it uses less digits than its factorization.

424641409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870894.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 424641409 is about 20606.8291835498. The cubic root of 424641409 is about 751.6357831723.

The spelling of 424641409 in words is "four hundred twenty-four million, six hundred forty-one thousand, four hundred nine".