344140245 has 48 divisors (see below), whose sum is σ = 639999360. Its totient is φ = 177194304.

The previous prime is 344140243. The next prime is 344140253. The reversal of 344140245 is 542041443.

It is a happy number.

344140245 is a `hidden beast` number, since 3 + 4 + 414 + 0 + 245 = 666.

It is not a de Polignac number, because 344140245 - 2¹ = 344140243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344140243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30352 + ... + 40118.

It is an arithmetic number, because the mean of its divisors is an integer number (13333320).

Almost surely, 2^344140245 is an apocalyptic number.

It is an amenable number.

344140245 is a deficient number, since it is larger than the sum of its proper divisors (295859115).

344140245 is an equidigital number, since it uses as much as digits as its factorization.

344140245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9816 (or 9804 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 344140245 is about 18551.0173575467. The cubic root of 344140245 is about 700.7748189195.

Adding to 344140245 its reverse (542041443), we get a palindrome (886181688).

The spelling of 344140245 in words is "three hundred forty-four million, one hundred forty thousand, two hundred forty-five".