386345905 has 16 divisors (see below), whose sum is σ = 532382400. Its totient is φ = 266189760.

The previous prime is 386345887. The next prime is 386345909. The reversal of 386345905 is 509543683.

It is not a de Polignac number, because 386345905 - 2¹³ = 386337713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (386345909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183810 + ... + 185899.

It is an arithmetic number, because the mean of its divisors is an integer number (33273900).

Almost surely, 2^386345905 is an apocalyptic number.

It is an amenable number.

386345905 is a deficient number, since it is larger than the sum of its proper divisors (146036495).

386345905 is a wasteful number, since it uses less digits than its factorization.

386345905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369744.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 386345905 is about 19655.6837835777. The cubic root of 386345905 is about 728.3253694173.

The spelling of 386345905 in words is "three hundred eighty-six million, three hundred forty-five thousand, nine hundred five".