38906566 has 8 divisors (see below), whose sum is σ = 61431480. Its totient is φ = 18429408.

The previous prime is 38906563. The next prime is 38906599. The reversal of 38906566 is 66560983.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38906561) 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, 511891 + ... + 511966.

It is an arithmetic number, because the mean of its divisors is an integer number (7678935).

Almost surely, 2^38906566 is an apocalyptic number.

38906566 is a deficient number, since it is larger than the sum of its proper divisors (22524914).

38906566 is a wasteful number, since it uses less digits than its factorization.

38906566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023878.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 38906566 is about 6237.5128055981. The cubic root of 38906566 is about 338.8501119755.

The spelling of 38906566 in words is "thirty-eight million, nine hundred six thousand, five hundred sixty-six".