344842313 has 2 divisors, whose sum is σ = 344842314. Its totient is φ = 344842312.

The previous prime is 344842301. The next prime is 344842369. The reversal of 344842313 is 313248443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312158224 + 32684089 = 17668^2 + 5717^2 .

It is a cyclic number.

It is not a de Polignac number, because 344842313 - 2¹⁸ = 344580169 is a prime.

It is equal to p_18541283 and since 344842313 and 18541283 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 344842313.

It is not a weakly prime, because it can be changed into another prime (344842373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172421156 + 172421157.

It is an arithmetic number, because the mean of its divisors is an integer number (172421157).

Almost surely, 2^344842313 is an apocalyptic number.

It is an amenable number.

344842313 is a deficient number, since it is larger than the sum of its proper divisors (1).

344842313 is an equidigital number, since it uses as much as digits as its factorization.

344842313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 32.

The square root of 344842313 is about 18569.9303445113. The cubic root of 344842313 is about 701.2510369698.

The spelling of 344842313 in words is "three hundred forty-four million, eight hundred forty-two thousand, three hundred thirteen".