4000880000 has 160 divisors (see below), whose sum is σ = 10728878160. Its totient is φ = 1476864000.

The previous prime is 4000879997. The next prime is 4000880021. The reversal of 4000880000 is 880004.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1038077 + ... + 1041923.

Almost surely, 2^4000880000 is an apocalyptic number.

4000880000 is a gapful number since it is divisible by the number (40) 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 4000880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5364439080).

4000880000 is an abundant number, since it is smaller than the sum of its proper divisors (6727998160).

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

4000880000 is an equidigital number, since it uses as much as digits as its factorization.

4000880000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894 (or 3867 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 4000880000 is about 63252.5098316264. The cubic root of 4000880000 is about 1587.5174528430.

The spelling of 4000880000 in words is "four billion, eight hundred eighty thousand".