38381671 has 4 divisors (see below), whose sum is σ = 39274312. Its totient is φ = 37489032.

The previous prime is 38381669. The next prime is 38381701. The reversal of 38381671 is 17618383.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38381671 - 2¹ = 38381669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38381671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38381621) 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, 446256 + ... + 446341.

It is an arithmetic number, because the mean of its divisors is an integer number (9818578).

Almost surely, 2^38381671 is an apocalyptic number.

38381671 is a deficient number, since it is larger than the sum of its proper divisors (892641).

38381671 is an equidigital number, since it uses as much as digits as its factorization.

38381671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892640.

The product of its digits is 24192, while the sum is 37.

The square root of 38381671 is about 6195.2942625835. The cubic root of 38381671 is about 337.3193795317.

The spelling of 38381671 in words is "thirty-eight million, three hundred eighty-one thousand, six hundred seventy-one".