345400212 has 24 divisors (see below), whose sum is σ = 806260896. Its totient is φ = 115086688.

The previous prime is 345400201. The next prime is 345400229. The reversal of 345400212 is 212004543.

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 7 ways as a sum of consecutive naturals, for example, 38323 + ... + 46469.

It is an arithmetic number, because the mean of its divisors is an integer number (33594204).

Almost surely, 2^345400212 is an apocalyptic number.

It is an amenable number.

345400212 is an abundant number, since it is smaller than the sum of its proper divisors (460860684).

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

345400212 is a wasteful number, since it uses less digits than its factorization.

345400212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11687 (or 11685 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 345400212 is about 18584.9458433432. The cubic root of 345400212 is about 701.6290034067.

Adding to 345400212 its reverse (212004543), we get a palindrome (557404755).

The spelling of 345400212 in words is "three hundred forty-five million, four hundred thousand, two hundred twelve".