8425408 has 28 divisors (see below), whose sum is σ = 17080992. Its totient is φ = 4121600.

The previous prime is 8425331. The next prime is 8425423. The reversal of 8425408 is 8045248.

It is a self number, because there is not a number n which added to its sum of digits gives 8425408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1608 + ... + 4408.

Almost surely, 2^8425408 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 8425408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8540496).

8425408 is an abundant number, since it is smaller than the sum of its proper divisors (8655584).

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

8425408 is a wasteful number, since it uses less digits than its factorization.

8425408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860 (or 2850 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 8425408 is about 2902.6553360673. The cubic root of 8425408 is about 203.4840221927.

The spelling of 8425408 in words is "eight million, four hundred twenty-five thousand, four hundred eight".