340504052305 has 8 divisors (see below), whose sum is σ = 422694685800. Its totient is φ = 263010026496.

The previous prime is 340504052281. The next prime is 340504052321. The reversal of 340504052305 is 503250405043.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 103736170561 + 236767881744 = 322081^2 + 486588^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340504052305 is a prime.

It is a super-2 number, since 2×340504052305² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174151760 + ... + 1174152049.

It is an arithmetic number, because the mean of its divisors is an integer number (52836835725).

Almost surely, 2^340504052305 is an apocalyptic number.

It is an amenable number.

340504052305 is a deficient number, since it is larger than the sum of its proper divisors (82190633495).

340504052305 is a wasteful number, since it uses less digits than its factorization.

340504052305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348303843.

The product of its (nonzero) digits is 36000, while the sum is 31.

Adding to 340504052305 its reverse (503250405043), we get a palindrome (843754457348).

The spelling of 340504052305 in words is "three hundred forty billion, five hundred four million, fifty-two thousand, three hundred five".