38393861 has 8 divisors (see below), whose sum is σ = 42317184. Its totient is φ = 34542720.

The previous prime is 38393857. The next prime is 38393867. The reversal of 38393861 is 16839383.

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

It is a cyclic number.

It is not a de Polignac number, because 38393861 - 2² = 38393857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38393867) 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, 16925 + ... + 19058.

It is an arithmetic number, because the mean of its divisors is an integer number (5289648).

Almost surely, 2^38393861 is an apocalyptic number.

It is an amenable number.

38393861 is a deficient number, since it is larger than the sum of its proper divisors (3923323).

38393861 is a wasteful number, since it uses less digits than its factorization.

38393861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36091.

The product of its digits is 93312, while the sum is 41.

The square root of 38393861 is about 6196.2779957003. The cubic root of 38393861 is about 337.3550865753.

The spelling of 38393861 in words is "thirty-eight million, three hundred ninety-three thousand, eight hundred sixty-one".