343422505 has 8 divisors (see below), whose sum is σ = 412374024. Its totient is φ = 274560000.

The previous prime is 343422487. The next prime is 343422517. The reversal of 343422505 is 505224343.

It can be written as a sum of positive squares in 4 ways, for example, as 189860841 + 153561664 = 13779^2 + 12392^2 .

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

It is not a de Polignac number, because 343422505 - 2²⁵ = 309868073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13446 + ... + 29455.

It is an arithmetic number, because the mean of its divisors is an integer number (51546753).

Almost surely, 2^343422505 is an apocalyptic number.

It is an amenable number.

343422505 is a deficient number, since it is larger than the sum of its proper divisors (68951519).

343422505 is a wasteful number, since it uses less digits than its factorization.

343422505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44507.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 343422505 is about 18531.6622298163. The cubic root of 343422505 is about 700.2873004347.

Adding to 343422505 its reverse (505224343), we get a palindrome (848646848).

The spelling of 343422505 in words is "three hundred forty-three million, four hundred twenty-two thousand, five hundred five".