343321225 has 12 divisors (see below), whose sum is σ = 458466316. Its totient is φ = 253529280.

The previous prime is 343321201. The next prime is 343321247. The reversal of 343321225 is 522123343.

It can be written as a sum of positive squares in 6 ways, for example, as 105760656 + 237560569 = 10284^2 + 15413^2 .

It is not a de Polignac number, because 343321225 - 2²³ = 334932617 is a prime.

It is a super-3 number, since 3×343321225³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343321225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 527862 + ... + 528511.

Almost surely, 2^343321225 is an apocalyptic number.

It is an amenable number.

343321225 is a deficient number, since it is larger than the sum of its proper divisors (115145091).

343321225 is a wasteful number, since it uses less digits than its factorization.

343321225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056396 (or 1056391 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 343321225 is about 18528.9294078206. The cubic root of 343321225 is about 700.2184522277.

Adding to 343321225 its reverse (522123343), we get a palindrome (865444568).

The spelling of 343321225 in words is "three hundred forty-three million, three hundred twenty-one thousand, two hundred twenty-five".