345220332 has 12 divisors (see below), whose sum is σ = 805514136. Its totient is φ = 115073440.

The previous prime is 345220273. The next prime is 345220373. The reversal of 345220332 is 233022543.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14384169 + ... + 14384192.

It is an arithmetic number, because the mean of its divisors is an integer number (67126178).

Almost surely, 2^345220332 is an apocalyptic number.

It is an amenable number.

345220332 is an abundant number, since it is smaller than the sum of its proper divisors (460293804).

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

345220332 is a wasteful number, since it uses less digits than its factorization.

345220332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28768368 (or 28768366 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 345220332 is about 18580.1058124005. The cubic root of 345220332 is about 701.5071824615.

Adding to 345220332 its reverse (233022543), we get a palindrome (578242875).

The spelling of 345220332 in words is "three hundred forty-five million, two hundred twenty thousand, three hundred thirty-two".