344997845 has 4 divisors (see below), whose sum is σ = 413997420. Its totient is φ = 275998272.

The previous prime is 344997841. The next prime is 344997893. The reversal of 344997845 is 548799443.

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 169859089 + 175138756 = 13033^2 + 13234^2 .

It is a cyclic number.

It is not a de Polignac number, because 344997845 - 2² = 344997841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344997841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34499780 + ... + 34499789.

It is an arithmetic number, because the mean of its divisors is an integer number (103499355).

Almost surely, 2^344997845 is an apocalyptic number.

It is an amenable number.

344997845 is a deficient number, since it is larger than the sum of its proper divisors (68999575).

344997845 is an equidigital number, since it uses as much as digits as its factorization.

344997845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68999574.

The product of its digits is 4354560, while the sum is 53.

The square root of 344997845 is about 18574.1176102662. The cubic root of 344997845 is about 701.3564480317.

The spelling of 344997845 in words is "three hundred forty-four million, nine hundred ninety-seven thousand, eight hundred forty-five".