38240005 has 4 divisors (see below), whose sum is σ = 45888012. Its totient is φ = 30592000.

The previous prime is 38239969. The next prime is 38240011. The reversal of 38240005 is 50004283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50004283 = 7 ⋅7143469.

It can be written as a sum of positive squares in 2 ways, for example, as 3876961 + 34363044 = 1969^2 + 5862^2 .

It is not a de Polignac number, because 38240005 - 2¹⁵ = 38207237 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3823996 + ... + 3824005.

It is an arithmetic number, because the mean of its divisors is an integer number (11472003).

Almost surely, 2^38240005 is an apocalyptic number.

It is an amenable number.

38240005 is a deficient number, since it is larger than the sum of its proper divisors (7648007).

38240005 is an equidigital number, since it uses as much as digits as its factorization.

38240005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7648006.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 38240005 is about 6183.8503377750. The cubic root of 38240005 is about 336.9038547940.

Adding to 38240005 its reverse (50004283), we get a palindrome (88244288).

The spelling of 38240005 in words is "thirty-eight million, two hundred forty thousand, five".