340716540390 has 16 divisors (see below), whose sum is σ = 817719697008. Its totient is φ = 90857744096.

The previous prime is 340716540349. The next prime is 340716540391. The reversal of 340716540390 is 93045617043.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340716540391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5678608977 + ... + 5678609036.

It is an arithmetic number, because the mean of its divisors is an integer number (51107481063).

Almost surely, 2^340716540390 is an apocalyptic number.

340716540390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

340716540390 is an abundant number, since it is smaller than the sum of its proper divisors (477003156618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340716540390 is a wasteful number, since it uses less digits than its factorization.

340716540390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11357218023.

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 340716540390 in words is "three hundred forty billion, seven hundred sixteen million, five hundred forty thousand, three hundred ninety".