38218893 has 8 divisors (see below), whose sum is σ = 53174208. Its totient is φ = 24371424.

The previous prime is 38218853. The next prime is 38218903. The reversal of 38218893 is 39881283.

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

It is not a de Polignac number, because 38218893 - 2⁸ = 38218637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38218853) 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, 276880 + ... + 277017.

It is an arithmetic number, because the mean of its divisors is an integer number (6646776).

Almost surely, 2^38218893 is an apocalyptic number.

It is an amenable number.

38218893 is a deficient number, since it is larger than the sum of its proper divisors (14955315).

38218893 is a wasteful number, since it uses less digits than its factorization.

38218893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553923.

The product of its digits is 82944, while the sum is 42.

The square root of 38218893 is about 6182.1430750186. The cubic root of 38218893 is about 336.8418427420.

The spelling of 38218893 in words is "thirty-eight million, two hundred eighteen thousand, eight hundred ninety-three".