340172984345 has 8 divisors (see below), whose sum is σ = 408220665864. Its totient is φ = 272129664384.

The previous prime is 340172984341. The next prime is 340172984357. The reversal of 340172984345 is 543489271043.

It can be written as a sum of positive squares in 4 ways, for example, as 11449642009 + 328723342336 = 107003^2 + 573344^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340172984345 - 2² = 340172984341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340172984293 and 340172984302.

It is not an unprimeable number, because it can be changed into a prime (340172984341) 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, 916274 + ... + 1232843.

It is an arithmetic number, because the mean of its divisors is an integer number (51027583233).

Almost surely, 2^340172984345 is an apocalyptic number.

It is an amenable number.

340172984345 is a deficient number, since it is larger than the sum of its proper divisors (68047681519).

340172984345 is a wasteful number, since it uses less digits than its factorization.

340172984345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180779.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 340172984345 in words is "three hundred forty billion, one hundred seventy-two million, nine hundred eighty-four thousand, three hundred forty-five".