340212058729 has 9 divisors (see below), whose sum is σ = 352365561093. Its totient is φ = 328464276672.

The previous prime is 340212058721. The next prime is 340212058741. The reversal of 340212058729 is 927850212043.

The square root of 340212058729 is 583277.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 81387531225 + 258824527504 = 285285^2 + 508748^2 .

It is not a de Polignac number, because 340212058729 - 2³ = 340212058721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340212058721) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16904977 + ... + 16925089.

Almost surely, 2^340212058729 is an apocalyptic number.

340212058729 is the 583277-th square number.

340212058729 is the 291639-th centered octagonal number.

It is an amenable number.

340212058729 is a deficient number, since it is larger than the sum of its proper divisors (12153502364).

340212058729 is an frugal number, since it uses more digits than its factorization.

340212058729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40284 (or 20142 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 340212058729 in words is "three hundred forty billion, two hundred twelve million, fifty-eight thousand, seven hundred twenty-nine".