345004212 has 48 divisors (see below), whose sum is σ = 925368192. Its totient is φ = 97998720.

The previous prime is 345004207. The next prime is 345004229. The reversal of 345004212 is 212400543.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 2662 + ... + 26402.

It is an arithmetic number, because the mean of its divisors is an integer number (19278504).

Almost surely, 2^345004212 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 345004212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462684096).

345004212 is an abundant number, since it is smaller than the sum of its proper divisors (580363980).

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

345004212 is a wasteful number, since it uses less digits than its factorization.

345004212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23928 (or 23926 counting only the distinct ones).

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

The square root of 345004212 is about 18574.2890038892. The cubic root of 345004212 is about 701.3607625601.

Adding to 345004212 its reverse (212400543), we get a palindrome (557404755).

The spelling of 345004212 in words is "three hundred forty-five million, four thousand, two hundred twelve".