340340403737 has 4 divisors (see below), whose sum is σ = 348641389236. Its totient is φ = 332039418240.

The previous prime is 340340403727. The next prime is 340340403749. The reversal of 340340403737 is 737304043043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 737304043043 = 14629 ⋅50400167.

It can be written as a sum of positive squares in 2 ways, for example, as 83903494921 + 256436908816 = 289661^2 + 506396^2 .

It is a cyclic number.

It is not a de Polignac number, because 340340403737 - 2²⁴ = 340323626521 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 340340403737.

It is not an unprimeable number, because it can be changed into a prime (340340403727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4150492688 + ... + 4150492769.

It is an arithmetic number, because the mean of its divisors is an integer number (87160347309).

Almost surely, 2^340340403737 is an apocalyptic number.

It is an amenable number.

340340403737 is a deficient number, since it is larger than the sum of its proper divisors (8300985499).

340340403737 is an equidigital number, since it uses as much as digits as its factorization.

340340403737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8300985498.

The product of its (nonzero) digits is 254016, while the sum is 38.

The spelling of 340340403737 in words is "three hundred forty billion, three hundred forty million, four hundred three thousand, seven hundred thirty-seven".