38218368 has 32 divisors (see below), whose sum is σ = 101518560. Its totient is φ = 12739328.

The previous prime is 38218361. The next prime is 38218399. The reversal of 38218368 is 86381283.

It is a tau number, because it is divible by the number of its divisors (32).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (38218361) 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, 49380 + ... + 50147.

It is an arithmetic number, because the mean of its divisors is an integer number (3172455).

Almost surely, 2^38218368 is an apocalyptic number.

It is an amenable number.

38218368 is an abundant number, since it is smaller than the sum of its proper divisors (63300192).

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

38218368 is an equidigital number, since it uses as much as digits as its factorization.

38218368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99544 (or 99532 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 38218368 is about 6182.1006138690. The cubic root of 38218368 is about 336.8403003741.

The spelling of 38218368 in words is "thirty-eight million, two hundred eighteen thousand, three hundred sixty-eight".