38378906 has 8 divisors (see below), whose sum is σ = 57988980. Its totient is φ = 19049248.

The previous prime is 38378891. The next prime is 38378909. The reversal of 38378906 is 60987383.

38378906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 37149025 + 1229881 = 6095^2 + 1109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (38378909) 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, 69761 + ... + 70308.

Almost surely, 2^38378906 is an apocalyptic number.

38378906 is a deficient number, since it is larger than the sum of its proper divisors (19610074).

38378906 is a wasteful number, since it uses less digits than its factorization.

38378906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140208.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 38378906 is about 6195.0711053224. The cubic root of 38378906 is about 337.3112792201.

The spelling of 38378906 in words is "thirty-eight million, three hundred seventy-eight thousand, nine hundred six".