345188312 has 16 divisors (see below), whose sum is σ = 739689360. Its totient is φ = 147937824.

The previous prime is 345188309. The next prime is 345188323. The reversal of 345188312 is 213881543.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3081983 + ... + 3082094.

It is an arithmetic number, because the mean of its divisors is an integer number (46230585).

Almost surely, 2^345188312 is an apocalyptic number.

It is an amenable number.

345188312 is an abundant number, since it is smaller than the sum of its proper divisors (394501048).

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

345188312 is a wasteful number, since it uses less digits than its factorization.

345188312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6164090 (or 6164086 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 345188312 is about 18579.2441181013. The cubic root of 345188312 is about 701.4854929757.

The spelling of 345188312 in words is "three hundred forty-five million, one hundred eighty-eight thousand, three hundred twelve".