345456449 has 12 divisors (see below), whose sum is σ = 374793516. Its totient is φ = 318269952.

The previous prime is 345456443. The next prime is 345456487. The reversal of 345456449 is 944654543.

It can be written as a sum of positive squares in 6 ways, for example, as 63888049 + 281568400 = 7993^2 + 16780^2 .

It is not a de Polignac number, because 345456449 - 2¹² = 345452353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345456443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102617 + ... + 105929.

It is an arithmetic number, because the mean of its divisors is an integer number (31232793).

Almost surely, 2^345456449 is an apocalyptic number.

It is an amenable number.

345456449 is a deficient number, since it is larger than the sum of its proper divisors (29337067).

345456449 is a wasteful number, since it uses less digits than its factorization.

345456449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3956 (or 3943 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 44.

The square root of 345456449 is about 18586.4587536195. The cubic root of 345456449 is about 701.6670803655.

The spelling of 345456449 in words is "three hundred forty-five million, four hundred fifty-six thousand, four hundred forty-nine".