340839684520 has 16 divisors (see below), whose sum is σ = 766889290260. Its totient is φ = 136335873792.

The previous prime is 340839684511. The next prime is 340839684541. The reversal of 340839684520 is 25486938043.

It can be written as a sum of positive squares in 2 ways, for example, as 333527040324 + 7312644196 = 577518^2 + 85514^2 .

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, 4260496017 + ... + 4260496096.

Almost surely, 2^340839684520 is an apocalyptic number.

It is an amenable number.

340839684520 is an abundant number, since it is smaller than the sum of its proper divisors (426049605740).

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

340839684520 is a wasteful number, since it uses less digits than its factorization.

340839684520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8520992124 (or 8520992120 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 340839684520 in words is "three hundred forty billion, eight hundred thirty-nine million, six hundred eighty-four thousand, five hundred twenty".