4003885780 has 12 divisors (see below), whose sum is σ = 8408160180. Its totient is φ = 1601554304.

The previous prime is 4003885777. The next prime is 4003885799. The reversal of 4003885780 is 875883004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2286943684 + 1716942096 = 47822^2 + 41436^2 .

It is a super-2 number, since 2×4003885780² = 32062202678572416800, 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, 100097125 + ... + 100097164.

It is an arithmetic number, because the mean of its divisors is an integer number (700680015).

Almost surely, 2^4003885780 is an apocalyptic number.

It is an amenable number.

4003885780 is an abundant number, since it is smaller than the sum of its proper divisors (4404274400).

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

4003885780 is a wasteful number, since it uses less digits than its factorization.

4003885780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200194298 (or 200194296 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 4003885780 is about 63276.2655345588. The cubic root of 4003885780 is about 1587.9149098808.

The spelling of 4003885780 in words is "four billion, three million, eight hundred eighty-five thousand, seven hundred eighty".