345330520 has 32 divisors (see below), whose sum is σ = 822700800. Its totient is φ = 130006528.

The previous prime is 345330511. The next prime is 345330527. The reversal of 345330520 is 25033543.

It is a happy number.

345330520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345330527) by changing a digit.

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, 253240 + ... + 254599.

It is an arithmetic number, because the mean of its divisors is an integer number (25709400).

Almost surely, 2^345330520 is an apocalyptic number.

It is an amenable number.

345330520 is an abundant number, since it is smaller than the sum of its proper divisors (477370280).

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

345330520 is a wasteful number, since it uses less digits than its factorization.

345330520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507867 (or 507863 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 345330520 is about 18583.0707903726. The cubic root of 345330520 is about 701.5818105987.

The spelling of 345330520 in words is "three hundred forty-five million, three hundred thirty thousand, five hundred twenty".