38540105 has 16 divisors (see below), whose sum is σ = 49778064. Its totient is φ = 28538880.

The previous prime is 38540057. The next prime is 38540143. The reversal of 38540105 is 50104583.

It can be written as a sum of positive squares in 8 ways, for example, as 8684809 + 29855296 = 2947^2 + 5464^2 .

It is not a de Polignac number, because 38540105 - 2¹⁴ = 38523721 is a prime.

It is a super-2 number, since 2×38540105² = 2970679386822050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1469 + ... + 8901.

It is an arithmetic number, because the mean of its divisors is an integer number (3111129).

Almost surely, 2^38540105 is an apocalyptic number.

It is an amenable number.

38540105 is a deficient number, since it is larger than the sum of its proper divisors (11237959).

38540105 is a wasteful number, since it uses less digits than its factorization.

38540105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7516.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 38540105 is about 6208.0677348109. The cubic root of 38540105 is about 337.7828776073.

Adding to 38540105 its reverse (50104583), we get a palindrome (88644688).

The spelling of 38540105 in words is "thirty-eight million, five hundred forty thousand, one hundred five".