4040663808 has 72 divisors (see below), whose sum is σ = 10773580608. Its totient is φ = 1344443392.

The previous prime is 4040663789. The next prime is 4040663821. The reversal of 4040663808 is 8083660404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446335 + ... + 455297.

It is an arithmetic number, because the mean of its divisors is an integer number (149633064).

Almost surely, 2^4040663808 is an apocalyptic number.

4040663808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4040663808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5386790304).

4040663808 is an abundant number, since it is smaller than the sum of its proper divisors (6732916800).

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

4040663808 is an equidigital number, since it uses as much as digits as its factorization.

4040663808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9569 (or 9555 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 4040663808 is about 63566.2159326792. The cubic root of 4040663808 is about 1592.7620738040.

The spelling of 4040663808 in words is "four billion, forty million, six hundred sixty-three thousand, eight hundred eight".