38685043 has 4 divisors (see below), whose sum is σ = 40019040. Its totient is φ = 37351048.

The previous prime is 38685037. The next prime is 38685067. The reversal of 38685043 is 34058683.

38685043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34058683 = 173 ⋅196871.

It is a cyclic number.

It is not a de Polignac number, because 38685043 - 2¹⁷ = 38553971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38684993 and 38685011.

It is not an unprimeable number, because it can be changed into a prime (38685943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666955 + ... + 667012.

It is an arithmetic number, because the mean of its divisors is an integer number (10004760).

Almost surely, 2^38685043 is an apocalyptic number.

38685043 is a deficient number, since it is larger than the sum of its proper divisors (1333997).

38685043 is a wasteful number, since it uses less digits than its factorization.

38685043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333996.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 38685043 is about 6219.7301388404. The cubic root of 38685043 is about 338.2057819294.

It can be divided in two parts, 3868 and 5043, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 38685043 in words is "thirty-eight million, six hundred eighty-five thousand, forty-three".