38384081 has 6 divisors (see below), whose sum is σ = 39754182. Its totient is φ = 37059680.

The previous prime is 38384051. The next prime is 38384149. The reversal of 38384081 is 18048383.

It can be written as a sum of positive squares in 3 ways, for example, as 5837056 + 32547025 = 2416^2 + 5705^2 .

It is a de Polignac number, because none of the positive numbers 2^k-38384081 is a prime.

It is a super-2 number, since 2×38384081² = 2946675348429122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38384041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21980 + ... + 23661.

It is an arithmetic number, because the mean of its divisors is an integer number (6625697).

Almost surely, 2^38384081 is an apocalyptic number.

It is an amenable number.

38384081 is a deficient number, since it is larger than the sum of its proper divisors (1370101).

38384081 is an equidigital number, since it uses as much as digits as its factorization.

38384081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45699 (or 45670 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 38384081 is about 6195.4887619945. The cubic root of 38384081 is about 337.3264395221.

The spelling of 38384081 in words is "thirty-eight million, three hundred eighty-four thousand, eighty-one".