38380866 has 16 divisors (see below), whose sum is σ = 81277344. Its totient is φ = 12041024.

The previous prime is 38380861. The next prime is 38380871. The reversal of 38380866 is 66808383.

It is an interprime number because it is at equal distance from previous prime (38380861) and next prime (38380871).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38380861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188040 + ... + 188243.

It is an arithmetic number, because the mean of its divisors is an integer number (5079834).

Almost surely, 2^38380866 is an apocalyptic number.

38380866 is an abundant number, since it is smaller than the sum of its proper divisors (42896478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38380866 is a wasteful number, since it uses less digits than its factorization.

38380866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376305.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 38380866 is about 6195.2292935774. The cubic root of 38380866 is about 337.3170212533.

The spelling of 38380866 in words is "thirty-eight million, three hundred eighty thousand, eight hundred sixty-six".