4009872 has 40 divisors (see below), whose sum is σ = 10450720. Its totient is φ = 1324800.

The previous prime is 4009861. The next prime is 4009891. The reversal of 4009872 is 2789004.

4009872 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 6372 + ... + 6972.

It is an arithmetic number, because the mean of its divisors is an integer number (261268).

Almost surely, 2^4009872 is an apocalyptic number.

It is an amenable number.

4009872 is an abundant number, since it is smaller than the sum of its proper divisors (6440848).

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

4009872 is a wasteful number, since it uses less digits than its factorization.

4009872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 4009872 is about 2002.4664791202. The cubic root of 4009872 is about 158.8705881049.

The spelling of 4009872 in words is "four million, nine thousand, eight hundred seventy-two".