38394493 has 8 divisors (see below), whose sum is σ = 39529728. Its totient is φ = 37264464.

The previous prime is 38394481. The next prime is 38394529. The reversal of 38394493 is 39449383.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38394493 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 (38394403) 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, 17580 + ... + 19642.

It is an arithmetic number, because the mean of its divisors is an integer number (4941216).

Almost surely, 2^38394493 is an apocalyptic number.

It is an amenable number.

38394493 is a deficient number, since it is larger than the sum of its proper divisors (1135235).

38394493 is a wasteful number, since it uses less digits than its factorization.

38394493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603.

The product of its digits is 279936, while the sum is 43.

The square root of 38394493 is about 6196.3289938479. The cubic root of 38394493 is about 337.3569376285.

The spelling of 38394493 in words is "thirty-eight million, three hundred ninety-four thousand, four hundred ninety-three".