2340136465 has 4 divisors (see below), whose sum is σ = 2808163764. Its totient is φ = 1872109168.

The previous prime is 2340136457. The next prime is 2340136471. The reversal of 2340136465 is 5646310432.

2340136465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1436713216 + 903423249 = 37904^2 + 30057^2 .

It is a cyclic number.

It is not a de Polignac number, because 2340136465 - 2³ = 2340136457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2340136465.

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, 234013642 + ... + 234013651.

It is an arithmetic number, because the mean of its divisors is an integer number (702040941).

Almost surely, 2^2340136465 is an apocalyptic number.

It is an amenable number.

2340136465 is a deficient number, since it is larger than the sum of its proper divisors (468027299).

2340136465 is an equidigital number, since it uses as much as digits as its factorization.

2340136465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468027298.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 2340136465 is about 48374.9570025649. The cubic root of 2340136465 is about 1327.6402018653.

Adding to 2340136465 its reverse (5646310432), we get a palindrome (7986446897).

The spelling of 2340136465 in words is "two billion, three hundred forty million, one hundred thirty-six thousand, four hundred sixty-five".