3854840521 has 8 divisors (see below), whose sum is σ = 4406620160. Its totient is φ = 3303332928.

The previous prime is 3854840519. The next prime is 3854840543. The reversal of 3854840521 is 1250484583.

3854840521 is digitally balanced in base 3, 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 3854840521 - 2¹ = 3854840519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3854840551) 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, 36681 + ... + 95158.

It is an arithmetic number, because the mean of its divisors is an integer number (550827520).

Almost surely, 2^3854840521 is an apocalyptic number.

It is an amenable number.

3854840521 is a deficient number, since it is larger than the sum of its proper divisors (551779639).

3854840521 is a wasteful number, since it uses less digits than its factorization.

3854840521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136023.

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 3854840521 is about 62087.3620070945. The cubic root of 3854840521 is about 1567.9617783671.

The spelling of 3854840521 in words is "three billion, eight hundred fifty-four million, eight hundred forty thousand, five hundred twenty-one".