344457389 has 4 divisors (see below), whose sum is σ = 356335260. Its totient is φ = 332579520.

The previous prime is 344457371. The next prime is 344457413. The reversal of 344457389 is 983754443.

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 99002500 + 245454889 = 9950^2 + 15667^2 .

It is a cyclic number.

It is not a de Polignac number, because 344457389 - 2¹² = 344453293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344457889) 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, 5938892 + ... + 5938949.

It is an arithmetic number, because the mean of its divisors is an integer number (89083815).

Almost surely, 2^344457389 is an apocalyptic number.

It is an amenable number.

344457389 is a deficient number, since it is larger than the sum of its proper divisors (11877871).

344457389 is a wasteful number, since it uses less digits than its factorization.

344457389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11877870.

The product of its digits is 1451520, while the sum is 47.

The square root of 344457389 is about 18559.5632761119. The cubic root of 344457389 is about 700.9900202283.

The spelling of 344457389 in words is "three hundred forty-four million, four hundred fifty-seven thousand, three hundred eighty-nine".