4089799640 has 16 divisors (see below), whose sum is σ = 9202049280. Its totient is φ = 1635919840.

The previous prime is 4089799639. The next prime is 4089799709. The reversal of 4089799640 is 469979804.

It is a super-2 number, since 2×4089799640² = 33452922190688259200, which contains 22 as substring.

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, 51122456 + ... + 51122535.

It is an arithmetic number, because the mean of its divisors is an integer number (575128080).

Almost surely, 2^4089799640 is an apocalyptic number.

4089799640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4089799640 is an abundant number, since it is smaller than the sum of its proper divisors (5112249640).

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

4089799640 is a wasteful number, since it uses less digits than its factorization.

4089799640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102245002 (or 102244998 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 4089799640 is about 63951.5413418629. The cubic root of 4089799640 is about 1599.1922537432.

The spelling of 4089799640 in words is "four billion, eighty-nine million, seven hundred ninety-nine thousand, six hundred forty".