340040105 has 4 divisors (see below), whose sum is σ = 408048132. Its totient is φ = 272032080.

The previous prime is 340040053. The next prime is 340040143. The reversal of 340040105 is 501040043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104693824 + 235346281 = 10232^2 + 15341^2 .

It is not a de Polignac number, because 340040105 - 2²⁴ = 323262889 is a prime.

It is a super-2 number, since 2×340040105² = 231254546016822050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon 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, 34004006 + ... + 34004015.

It is an arithmetic number, because the mean of its divisors is an integer number (102012033).

Almost surely, 2^340040105 is an apocalyptic number.

It is an amenable number.

340040105 is a deficient number, since it is larger than the sum of its proper divisors (68008027).

340040105 is an equidigital number, since it uses as much as digits as its factorization.

340040105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68008026.

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

The square root of 340040105 is about 18440.1763820198. The cubic root of 340040105 is about 697.9806461740.

Adding to 340040105 its reverse (501040043), we get a palindrome (841080148).

The spelling of 340040105 in words is "three hundred forty million, forty thousand, one hundred five".