2009451108 has 24 divisors (see below), whose sum is σ = 5358536512. Its totient is φ = 574128864.

The previous prime is 2009451107. The next prime is 2009451109. The reversal of 2009451108 is 8011549002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2009451107) and next prime (2009451109).

It is not an unprimeable number, because it can be changed into a prime (2009451107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11960935 + ... + 11961102.

Almost surely, 2^2009451108 is an apocalyptic number.

2009451108 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2009451108 is an abundant number, since it is smaller than the sum of its proper divisors (3349085404).

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

2009451108 is a wasteful number, since it uses less digits than its factorization.

2009451108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23922051 (or 23922049 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 2009451108 is about 44826.9016105285. The cubic root of 2009451108 is about 1261.9025402706.

The spelling of 2009451108 in words is "two billion, nine million, four hundred fifty-one thousand, one hundred eight".