345311712 has 36 divisors (see below), whose sum is σ = 981981000. Its totient is φ = 115103808.

The previous prime is 345311711. The next prime is 345311737. The reversal of 345311712 is 217113543.

345311712 is a `hidden beast` number, since 345 + 311 + 7 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345311711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 599212 + ... + 599787.

It is an arithmetic number, because the mean of its divisors is an integer number (27277250).

Almost surely, 2^345311712 is an apocalyptic number.

345311712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

345311712 is an abundant number, since it is smaller than the sum of its proper divisors (636669288).

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

345311712 is a wasteful number, since it uses less digits than its factorization.

345311712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199015 (or 1199004 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 345311712 is about 18582.5647314896. The cubic root of 345311712 is about 701.5690734387.

The spelling of 345311712 in words is "three hundred forty-five million, three hundred eleven thousand, seven hundred twelve".