345121210 has 96 divisors (see below), whose sum is σ = 763540992. Its totient is φ = 111767040.

The previous prime is 345121201. The next prime is 345121223. The reversal of 345121210 is 12121543.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1273375 + ... + 1273645.

It is an arithmetic number, because the mean of its divisors is an integer number (7953552).

Almost surely, 2^345121210 is an apocalyptic number.

345121210 is an abundant number, since it is smaller than the sum of its proper divisors (418419782).

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

345121210 is a wasteful number, since it uses less digits than its factorization.

345121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 345121210 is about 18577.4381979863. The cubic root of 345121210 is about 701.4400355366.

Adding to 345121210 its reverse (12121543), we get a palindrome (357242753).

The spelling of 345121210 in words is "three hundred forty-five million, one hundred twenty-one thousand, two hundred ten".