4005550872 has 64 divisors (see below), whose sum is σ = 11131797600. Its totient is φ = 1334551680.

The previous prime is 4005550837. The next prime is 4005550933. The reversal of 4005550872 is 2780555004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 762238 + ... + 767474.

Almost surely, 2^4005550872 is an apocalyptic number.

It is an amenable number.

4005550872 is an abundant number, since it is smaller than the sum of its proper divisors (7126246728).

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

4005550872 is a wasteful number, since it uses less digits than its factorization.

4005550872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8793 (or 8783 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 4005550872 is about 63289.4214857428. The cubic root of 4005550872 is about 1588.1350009058.

The spelling of 4005550872 in words is "four billion, five million, five hundred fifty thousand, eight hundred seventy-two".