345211216 has 40 divisors (see below), whose sum is σ = 765716864. Its totient is φ = 147692160.

The previous prime is 345211213. The next prime is 345211241. The reversal of 345211216 is 612112543.

It is a happy number.

It is a super-3 number, since 3×345211216³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345211213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71701 + ... + 76363.

Almost surely, 2^345211216 is an apocalyptic number.

It is an amenable number.

345211216 is an abundant number, since it is smaller than the sum of its proper divisors (420505648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345211216 is a wasteful number, since it uses less digits than its factorization.

345211216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339 (or 5333 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 345211216 is about 18579.8604946324. The cubic root of 345211216 is about 701.5010076652.

Adding to 345211216 its reverse (612112543), we get a palindrome (957323759).

The spelling of 345211216 in words is "three hundred forty-five million, two hundred eleven thousand, two hundred sixteen".