345212180 has 48 divisors (see below), whose sum is σ = 742936320. Its totient is φ = 134679168.

The previous prime is 345212171. The next prime is 345212191. The reversal of 345212180 is 81212543.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 416006 + ... + 416834.

It is an arithmetic number, because the mean of its divisors is an integer number (15477840).

Almost surely, 2^345212180 is an apocalyptic number.

It is an amenable number.

345212180 is an abundant number, since it is smaller than the sum of its proper divisors (397724140).

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

345212180 is a wasteful number, since it uses less digits than its factorization.

345212180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328 (or 1326 counting only the distinct ones).

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

The square root of 345212180 is about 18579.8864366820. The cubic root of 345212180 is about 701.5016606435.

The spelling of 345212180 in words is "three hundred forty-five million, two hundred twelve thousand, one hundred eighty".