386131943 has 4 divisors (see below), whose sum is σ = 389172480. Its totient is φ = 383091408.

The previous prime is 386131937. The next prime is 386131969. The reversal of 386131943 is 349131683.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 386131943 - 2²⁶ = 319023079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 386131897 and 386131906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386131913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1520078 + ... + 1520331.

It is an arithmetic number, because the mean of its divisors is an integer number (97293120).

Almost surely, 2^386131943 is an apocalyptic number.

386131943 is a deficient number, since it is larger than the sum of its proper divisors (3040537).

386131943 is a wasteful number, since it uses less digits than its factorization.

386131943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040536.

The product of its digits is 46656, while the sum is 38.

The square root of 386131943 is about 19650.2402784292. The cubic root of 386131943 is about 728.1908934404.

The spelling of 386131943 in words is "three hundred eighty-six million, one hundred thirty-one thousand, nine hundred forty-three".