2009885472 has 72 divisors (see below), whose sum is σ = 6532134336. Its totient is φ = 574252416.

The previous prime is 2009885431. The next prime is 2009885533. The reversal of 2009885472 is 2745889002.

2009885472 is a `hidden beast` number, since 20 + 0 + 9 + 88 + 547 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×2009885472² = 8079279221113325568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496468 + ... + 500499.

It is an arithmetic number, because the mean of its divisors is an integer number (90724088).

Almost surely, 2^2009885472 is an apocalyptic number.

It is an amenable number.

2009885472 is an abundant number, since it is smaller than the sum of its proper divisors (4522248864).

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

2009885472 is a wasteful number, since it uses less digits than its factorization.

2009885472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996990 (or 996979 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 2009885472 is about 44831.7462519586. The cubic root of 2009885472 is about 1261.9934582238.

It can be divided in two parts, 20098 and 85472, that added together give a triangular number (105570 = T₄₅₉).

The spelling of 2009885472 in words is "two billion, nine million, eight hundred eighty-five thousand, four hundred seventy-two".