340470220505 has 16 divisors (see below), whose sum is σ = 409167584784. Its totient is φ = 271974236160.

The previous prime is 340470220501. The next prime is 340470220511. The reversal of 340470220505 is 505022074043.

It can be written as a sum of positive squares in 8 ways, for example, as 3544535296 + 336925685209 = 59536^2 + 580453^2 .

It is not a de Polignac number, because 340470220505 - 2² = 340470220501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340470220501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10975577 + ... + 11006553.

It is an arithmetic number, because the mean of its divisors is an integer number (25572974049).

Almost surely, 2^340470220505 is an apocalyptic number.

It is an amenable number.

340470220505 is a deficient number, since it is larger than the sum of its proper divisors (68697364279).

340470220505 is a wasteful number, since it uses less digits than its factorization.

340470220505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34156.

The product of its (nonzero) digits is 33600, while the sum is 32.

Adding to 340470220505 its reverse (505022074043), we get a palindrome (845492294548).

The spelling of 340470220505 in words is "three hundred forty billion, four hundred seventy million, two hundred twenty thousand, five hundred five".