345186312 has 32 divisors (see below), whose sum is σ = 877116480. Its totient is φ = 113175360.

The previous prime is 345186311. The next prime is 345186337. The reversal of 345186312 is 213681543.

345186312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×345186312² = 238307179984322688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345186311) 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, 116428 + ... + 119355.

It is an arithmetic number, because the mean of its divisors is an integer number (27409890).

Almost surely, 2^345186312 is an apocalyptic number.

It is an amenable number.

345186312 is an abundant number, since it is smaller than the sum of its proper divisors (531930168).

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

345186312 is a wasteful number, since it uses less digits than its factorization.

345186312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235853 (or 235849 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 345186312 is about 18579.1902945204. The cubic root of 345186312 is about 701.4841381850.

The spelling of 345186312 in words is "three hundred forty-five million, one hundred eighty-six thousand, three hundred twelve".