38905678 has 16 divisors (see below), whose sum is σ = 67790304. Its totient is φ = 16400160.

The previous prime is 38905661. The next prime is 38905681. The reversal of 38905678 is 87650983.

38905678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21925 + ... + 23632.

It is an arithmetic number, because the mean of its divisors is an integer number (4236894).

Almost surely, 2^38905678 is an apocalyptic number.

38905678 is a deficient number, since it is larger than the sum of its proper divisors (28884626).

38905678 is a wasteful number, since it uses less digits than its factorization.

38905678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45627.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 38905678 is about 6237.4416229733. The cubic root of 38905678 is about 338.8475339943.

The spelling of 38905678 in words is "thirty-eight million, nine hundred five thousand, six hundred seventy-eight".