38766405 has 16 divisors (see below), whose sum is σ = 62475840. Its totient is φ = 20525568.

The previous prime is 38766391. The next prime is 38766407. The reversal of 38766405 is 50466783.

38766405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38766405 - 2⁸ = 38766149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38766407) 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 15 ways as a sum of consecutive naturals, for example, 7212 + ... + 11381.

It is an arithmetic number, because the mean of its divisors is an integer number (3904740).

Almost surely, 2^38766405 is an apocalyptic number.

It is an amenable number.

38766405 is a deficient number, since it is larger than the sum of its proper divisors (23709435).

38766405 is a wasteful number, since it uses less digits than its factorization.

38766405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18740.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 38766405 is about 6226.2673408713. The cubic root of 38766405 is about 338.4427195844.

The spelling of 38766405 in words is "thirty-eight million, seven hundred sixty-six thousand, four hundred five".