3840209121 has 8 divisors (see below), whose sum is σ = 5851747264. Its totient is φ = 2194405200.

The previous prime is 3840209089. The next prime is 3840209129. The reversal of 3840209121 is 1219020483.

3840209121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3840209121 - 2⁵ = 3840209089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3840209129) 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, 91433530 + ... + 91433571.

It is an arithmetic number, because the mean of its divisors is an integer number (731468408).

Almost surely, 2^3840209121 is an apocalyptic number.

It is an amenable number.

3840209121 is a deficient number, since it is larger than the sum of its proper divisors (2011538143).

3840209121 is a wasteful number, since it uses less digits than its factorization.

3840209121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182867111.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 3840209121 is about 61969.4208541600. The cubic root of 3840209121 is about 1565.9754823764.

The spelling of 3840209121 in words is "three billion, eight hundred forty million, two hundred nine thousand, one hundred twenty-one".