3853430385 has 16 divisors (see below), whose sum is σ = 7046272896. Its totient is φ = 1761568128.

The previous prime is 3853430381. The next prime is 3853430393. The reversal of 3853430385 is 5830343583.

It is a happy number.

It is not a de Polignac number, because 3853430385 - 2² = 3853430381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3853430381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18349564 + ... + 18349773.

It is an arithmetic number, because the mean of its divisors is an integer number (440392056).

Almost surely, 2^3853430385 is an apocalyptic number.

3853430385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3853430385 is a deficient number, since it is larger than the sum of its proper divisors (3192842511).

3853430385 is a wasteful number, since it uses less digits than its factorization.

3853430385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36699352.

The product of its (nonzero) digits is 518400, while the sum is 42.

The square root of 3853430385 is about 62076.0049052772. The cubic root of 3853430385 is about 1567.7705634518.

The spelling of 3853430385 in words is "three billion, eight hundred fifty-three million, four hundred thirty thousand, three hundred eighty-five".