340144465 has 4 divisors (see below), whose sum is σ = 408173364. Its totient is φ = 272115568.

The previous prime is 340144459. The next prime is 340144471. The reversal of 340144465 is 564441043.

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

It is an interprime number because it is at equal distance from previous prime (340144459) and next prime (340144471).

It can be written as a sum of positive squares in 2 ways, for example, as 117657409 + 222487056 = 10847^2 + 14916^2 .

It is a cyclic number.

It is not a de Polignac number, because 340144465 - 2⁹ = 340143953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34014442 + ... + 34014451.

It is an arithmetic number, because the mean of its divisors is an integer number (102043341).

Almost surely, 2^340144465 is an apocalyptic number.

It is an amenable number.

340144465 is a deficient number, since it is larger than the sum of its proper divisors (68028899).

340144465 is an equidigital number, since it uses as much as digits as its factorization.

340144465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68028898.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 340144465 is about 18443.0058558794. The cubic root of 340144465 is about 698.0520434481.

The spelling of 340144465 in words is "three hundred forty million, one hundred forty-four thousand, four hundred sixty-five".