248640808 has 64 divisors (see below), whose sum is σ = 518918400. Its totient is φ = 110972160.

The previous prime is 248640803. The next prime is 248640817. The reversal of 248640808 is 808046842.

It is not an unprimeable number, because it can be changed into a prime (248640803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435163 + ... + 435733.

It is an arithmetic number, because the mean of its divisors is an integer number (8108100).

Almost surely, 2^248640808 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 248640808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259459200).

248640808 is an abundant number, since it is smaller than the sum of its proper divisors (270277592).

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

248640808 is a wasteful number, since it uses less digits than its factorization.

248640808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 248640808 is about 15768.3482965084. The cubic root of 248640808 is about 628.8167999729.

The spelling of 248640808 in words is "two hundred forty-eight million, six hundred forty thousand, eight hundred eight".