40340105 has 16 divisors (see below), whose sum is σ = 53406864. Its totient is φ = 29061120.

The previous prime is 40340089. The next prime is 40340119. The reversal of 40340105 is 50104304.

It can be written as a sum of positive squares in 8 ways, for example, as 9114361 + 31225744 = 3019^2 + 5588^2 .

It is not a de Polignac number, because 40340105 - 2⁴ = 40340089 is a prime.

It is a super-2 number, since 2×40340105² = 3254648142822050, 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, 4904 + ... + 10233.

It is an arithmetic number, because the mean of its divisors is an integer number (3337929).

Almost surely, 2^40340105 is an apocalyptic number.

It is an amenable number.

40340105 is a deficient number, since it is larger than the sum of its proper divisors (13066759).

40340105 is a wasteful number, since it uses less digits than its factorization.

40340105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15196.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40340105 is about 6351.3860691978. The cubic root of 40340105 is about 342.9617406971.

Adding to 40340105 its reverse (50104304), we get a palindrome (90444409).

The spelling of 40340105 in words is "forty million, three hundred forty thousand, one hundred five".