343521415449 has 15 divisors (see below), whose sum is σ = 513169500613. Its totient is φ = 229010760324.

The previous prime is 343521415409. The next prime is 343521415453. The reversal of 343521415449 is 944514125343.

It is a happy number.

The square root of 343521415449 is 586107.

It is a perfect power (a square), and thus also a powerful number.

343521415449 is a `hidden beast` number, since 3 + 43 + 5 + 21 + 41 + 544 + 9 = 666.

It is not a de Polignac number, because 343521415449 - 2¹¹ = 343521413401 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 (343521415409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5242402 + ... + 5307524.

Almost surely, 2^343521415449 is an apocalyptic number.

343521415449 is the 586107-th square number.

343521415449 is the 293054-th centered octagonal number.

It is an amenable number.

343521415449 is a deficient number, since it is larger than the sum of its proper divisors (169648085164).

343521415449 is an frugal number, since it uses more digits than its factorization.

343521415449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130258 (or 65126 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The spelling of 343521415449 in words is "three hundred forty-three billion, five hundred twenty-one million, four hundred fifteen thousand, four hundred forty-nine".