345081212 has 48 divisors (see below), whose sum is σ = 716728320. Its totient is φ = 142257600.

The previous prime is 345081199. The next prime is 345081227. The reversal of 345081212 is 212180543.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154262 + ... + 156482.

It is an arithmetic number, because the mean of its divisors is an integer number (14931840).

Almost surely, 2^345081212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345081212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358364160).

345081212 is an abundant number, since it is smaller than the sum of its proper divisors (371647108).

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

345081212 is a wasteful number, since it uses less digits than its factorization.

345081212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442 (or 2440 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 345081212 is about 18576.3616459198. The cubic root of 345081212 is about 701.4129365719.

The spelling of 345081212 in words is "three hundred forty-five million, eighty-one thousand, two hundred twelve".