3858536409 has 24 divisors (see below), whose sum is σ = 6445031040. Its totient is φ = 2035270944.

The previous prime is 3858536389. The next prime is 3858536413. The reversal of 3858536409 is 9046358583.

It is a happy number.

It is not a de Polignac number, because 3858536409 - 2⁵ = 3858536377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3858536509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1007649 + ... + 1011470.

It is an arithmetic number, because the mean of its divisors is an integer number (268542960).

Almost surely, 2^3858536409 is an apocalyptic number.

3858536409 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3858536409 is a deficient number, since it is larger than the sum of its proper divisors (2586494631).

3858536409 is a wasteful number, since it uses less digits than its factorization.

3858536409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019149 (or 2019142 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The square root of 3858536409 is about 62117.1184859697. The cubic root of 3858536409 is about 1568.4627208450.

The spelling of 3858536409 in words is "three billion, eight hundred fifty-eight million, five hundred thirty-six thousand, four hundred nine".