2009208388 has 24 divisors (see below), whose sum is σ = 3867472224. Its totient is φ = 913274120.

The previous prime is 2009208379. The next prime is 2009208389. The reversal of 2009208388 is 8838029002.

It is a super-3 number, since 3×2009208388³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2009208388.

It is not an unprimeable number, because it can be changed into a prime (2009208389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183370 + ... + 194017.

It is an arithmetic number, because the mean of its divisors is an integer number (161144676).

Almost surely, 2^2009208388 is an apocalyptic number.

It is an amenable number.

2009208388 is a deficient number, since it is larger than the sum of its proper divisors (1858263836).

2009208388 is a wasteful number, since it uses less digits than its factorization.

2009208388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377424 (or 377400 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 2009208388 is about 44824.1942258865. The cubic root of 2009208388 is about 1261.8517301569.

The spelling of 2009208388 in words is "two billion, nine million, two hundred eight thousand, three hundred eighty-eight".