38386906 has 8 divisors (see below), whose sum is σ = 58984884. Its totient is φ = 18725280.

The previous prime is 38386903. The next prime is 38386927. The reversal of 38386906 is 60968383.

It can be written as a sum of positive squares in 2 ways, for example, as 26101881 + 12285025 = 5109^2 + 3505^2 .

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 (38386903) 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, 233985 + ... + 234148.

Almost surely, 2^38386906 is an apocalyptic number.

38386906 is a deficient number, since it is larger than the sum of its proper divisors (20597978).

38386906 is a wasteful number, since it uses less digits than its factorization.

38386906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468176.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 38386906 is about 6195.7167462692. The cubic root of 38386906 is about 337.3347148608.

The spelling of 38386906 in words is "thirty-eight million, three hundred eighty-six thousand, nine hundred six".