343212345 has 24 divisors (see below), whose sum is σ = 679887936. Its totient is φ = 156896928.

The previous prime is 343212341. The next prime is 343212349. The reversal of 343212345 is 543212343.

343212345 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (343212341) and next prime (343212349).

It is not a de Polignac number, because 343212345 - 2² = 343212341 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (343212341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 544467 + ... + 545096.

It is an arithmetic number, because the mean of its divisors is an integer number (28328664).

Almost surely, 2^343212345 is an apocalyptic number.

343212345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

343212345 is a deficient number, since it is larger than the sum of its proper divisors (336675591).

343212345 is a wasteful number, since it uses less digits than its factorization.

343212345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089581 (or 1089578 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 343212345 is about 18525.9910666069. The cubic root of 343212345 is about 700.1444225819.

Adding to 343212345 its reverse (543212343), we get a palindrome (886424688).

The spelling of 343212345 in words is "three hundred forty-three million, two hundred twelve thousand, three hundred forty-five".