345520266 has 48 divisors (see below), whose sum is σ = 865708704. Its totient is φ = 91125216.

The previous prime is 345520261. The next prime is 345520267. The reversal of 345520266 is 662025543.

It is not an unprimeable number, because it can be changed into a prime (345520261) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 41380 + ... + 49023.

It is an arithmetic number, because the mean of its divisors is an integer number (18035598).

Almost surely, 2^345520266 is an apocalyptic number.

345520266 is an abundant number, since it is smaller than the sum of its proper divisors (520188438).

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

345520266 is a wasteful number, since it uses less digits than its factorization.

345520266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90435 (or 90428 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 345520266 is about 18588.1754349371. The cubic root of 345520266 is about 701.7102845872.

The spelling of 345520266 in words is "three hundred forty-five million, five hundred twenty thousand, two hundred sixty-six".