340337027405 has 4 divisors (see below), whose sum is σ = 408404432892. Its totient is φ = 272269621920.

The previous prime is 340337027353. The next prime is 340337027417. The reversal of 340337027405 is 504720733043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504720733043 = 13751 ⋅36704293.

It can be written as a sum of positive squares in 2 ways, for example, as 263060255236 + 77276772169 = 512894^2 + 277987^2 .

It is a de Polignac number, because none of the positive numbers 2^k-340337027405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34033702736 + ... + 34033702745.

It is an arithmetic number, because the mean of its divisors is an integer number (102101108223).

Almost surely, 2^340337027405 is an apocalyptic number.

It is an amenable number.

340337027405 is a deficient number, since it is larger than the sum of its proper divisors (68067405487).

340337027405 is an equidigital number, since it uses as much as digits as its factorization.

340337027405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68067405486.

The product of its (nonzero) digits is 211680, while the sum is 38.

The spelling of 340337027405 in words is "three hundred forty billion, three hundred thirty-seven million, twenty-seven thousand, four hundred five".