344704405 has 4 divisors (see below), whose sum is σ = 413645292. Its totient is φ = 275763520.

The previous prime is 344704363. The next prime is 344704433. The reversal of 344704405 is 504407443.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 218389284 + 126315121 = 14778^2 + 11239^2 .

It is not a de Polignac number, because 344704405 - 2⁷ = 344704277 is a prime.

It is a super-2 number, since 2×344704405² = 237642253652808050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34470436 + ... + 34470445.

It is an arithmetic number, because the mean of its divisors is an integer number (103411323).

Almost surely, 2^344704405 is an apocalyptic number.

It is an amenable number.

344704405 is a deficient number, since it is larger than the sum of its proper divisors (68940887).

344704405 is an equidigital number, since it uses as much as digits as its factorization.

344704405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68940886.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 344704405 is about 18566.2167659435. The cubic root of 344704405 is about 701.1575439742.

The spelling of 344704405 in words is "three hundred forty-four million, seven hundred four thousand, four hundred five".