3805138207 has 8 divisors (see below), whose sum is σ = 4108168736. Its totient is φ = 3503583072.

The previous prime is 3805138133. The next prime is 3805138223. The reversal of 3805138207 is 7028315083.

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

It is a cyclic number.

It is not a de Polignac number, because 3805138207 - 2¹⁵ = 3805105439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3805138297) 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 7 ways as a sum of consecutive naturals, for example, 363483 + ... + 373804.

It is an arithmetic number, because the mean of its divisors is an integer number (513521092).

Almost surely, 2^3805138207 is an apocalyptic number.

3805138207 is a deficient number, since it is larger than the sum of its proper divisors (303030529).

3805138207 is a wasteful number, since it uses less digits than its factorization.

3805138207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737697.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 3805138207 is about 61685.8023130120. The cubic root of 3805138207 is about 1561.1937781888.

The spelling of 3805138207 in words is "three billion, eight hundred five million, one hundred thirty-eight thousand, two hundred seven".