344143709 has 24 divisors (see below), whose sum is σ = 441673848. Its totient is φ = 265628160.

The previous prime is 344143673. The next prime is 344143727. The reversal of 344143709 is 907341443.

It can be written as a sum of positive squares in 4 ways, for example, as 41209 + 344102500 = 203^2 + 18550^2 .

It is not a de Polignac number, because 344143709 - 2⁸ = 344143453 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344143739) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19529 + ... + 32705.

It is an arithmetic number, because the mean of its divisors is an integer number (18403077).

Almost surely, 2^344143709 is an apocalyptic number.

It is an amenable number.

344143709 is a deficient number, since it is larger than the sum of its proper divisors (97530139).

344143709 is a wasteful number, since it uses less digits than its factorization.

344143709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13245 (or 13238 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 344143709 is about 18551.1107214636. The cubic root of 344143709 is about 700.7771701662. Note that the first 3 decimals are identical.

The spelling of 344143709 in words is "three hundred forty-four million, one hundred forty-three thousand, seven hundred nine".