2009231952 has 160 divisors (see below), whose sum is σ = 6524915712. Its totient is φ = 518579712.

The previous prime is 2009231951. The next prime is 2009231963. The reversal of 2009231952 is 2591329002.

It is a super-3 number, since 3×2009231952³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009231951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200403 + ... + 210189.

Almost surely, 2^2009231952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2009231952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3262457856).

2009231952 is an abundant number, since it is smaller than the sum of its proper divisors (4515683760).

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

2009231952 is a wasteful number, since it uses less digits than its factorization.

2009231952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9865 (or 9859 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 2009231952 is about 44824.4570742357. The cubic root of 2009231952 is about 1261.8566631375.

The spelling of 2009231952 in words is "two billion, nine million, two hundred thirty-one thousand, nine hundred fifty-two".