340795585729 has 3 divisors (see below), whose sum is σ = 340796169507. Its totient is φ = 340795001952.

The previous prime is 340795585657. The next prime is 340795585811. The reversal of 340795585729 is 927585597043.

The square root of 340795585729 is 583777.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 340606468225 + 189117504 = 583615^2 + 13752^2 .

It is a de Polignac number, because none of the positive numbers 2^k-340795585729 is a prime.

It is a super-2 number, since 2×340795585729² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340795525729) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 291889 + ... + 875665.

It is an arithmetic number, because the mean of its divisors is an integer number (113598723169).

Almost surely, 2^340795585729 is an apocalyptic number.

340795585729 is the 583777-th square number.

340795585729 is the 291889-th centered octagonal number.

It is an amenable number.

340795585729 is a deficient number, since it is larger than the sum of its proper divisors (583778).

340795585729 is an frugal number, since it uses more digits than its factorization.

340795585729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167554 (or 583777 counting only the distinct ones).

The product of its (nonzero) digits is 95256000, while the sum is 64.

Multiplying 340795585729 by its sum of digits (64), we get a square (21810917486656 = 4670216²).

The spelling of 340795585729 in words is "three hundred forty billion, seven hundred ninety-five million, five hundred eighty-five thousand, seven hundred twenty-nine".