424399808 has 112 divisors (see below), whose sum is σ = 1028517120. Its totient is φ = 169703424.

The previous prime is 424399799. The next prime is 424399817. The reversal of 424399808 is 808993424.

It is an interprime number because it is at equal distance from previous prime (424399799) and next prime (424399817).

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621035 + ... + 621717.

Almost surely, 2^424399808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424399808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514258560).

424399808 is an abundant number, since it is smaller than the sum of its proper divisors (604117312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424399808 is a wasteful number, since it uses less digits than its factorization.

424399808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 784 counting only the distinct ones).

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

The square root of 424399808 is about 20600.9661909339. The cubic root of 424399808 is about 751.4932076534.

The spelling of 424399808 in words is "four hundred twenty-four million, three hundred ninety-nine thousand, eight hundred eight".