2009487732 has 24 divisors (see below), whose sum is σ = 5358634176. Its totient is φ = 574139328.

The previous prime is 2009487721. The next prime is 2009487751. The reversal of 2009487732 is 2377849002.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 11961153 + ... + 11961320.

It is an arithmetic number, because the mean of its divisors is an integer number (223276424).

Almost surely, 2^2009487732 is an apocalyptic number.

It is an amenable number.

2009487732 is an abundant number, since it is smaller than the sum of its proper divisors (3349146444).

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

2009487732 is a wasteful number, since it uses less digits than its factorization.

2009487732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23922487 (or 23922485 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 2009487732 is about 44827.3101133673. The cubic root of 2009487732 is about 1261.9102066490.

The spelling of 2009487732 in words is "two billion, nine million, four hundred eighty-seven thousand, seven hundred thirty-two".