424808399 has 4 divisors (see below), whose sum is σ = 426586080. Its totient is φ = 423030720.

The previous prime is 424808381. The next prime is 424808401. The reversal of 424808399 is 993808424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 424808399 - 2²⁰ = 423759823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424808899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888482 + ... + 888959.

It is an arithmetic number, because the mean of its divisors is an integer number (106646520).

Almost surely, 2^424808399 is an apocalyptic number.

424808399 is a deficient number, since it is larger than the sum of its proper divisors (1777681).

424808399 is a wasteful number, since it uses less digits than its factorization.

424808399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777680.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 424808399 is about 20610.8805973932. The cubic root of 424808399 is about 751.7342970457.

The spelling of 424808399 in words is "four hundred twenty-four million, eight hundred eight thousand, three hundred ninety-nine".