345642808 has 32 divisors (see below), whose sum is σ = 764559360. Its totient is φ = 143353440.

The previous prime is 345642797. The next prime is 345642853. The reversal of 345642808 is 808246543.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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, 97816 + ... + 101287.

It is an arithmetic number, because the mean of its divisors is an integer number (23892480).

Almost surely, 2^345642808 is an apocalyptic number.

It is an amenable number.

345642808 is an abundant number, since it is smaller than the sum of its proper divisors (418916552).

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

345642808 is a wasteful number, since it uses less digits than its factorization.

345642808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199147 (or 199143 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 345642808 is about 18591.4713780271. The cubic root of 345642808 is about 701.7932308247.

It can be divided in two parts, 3456 and 42808, that added together give a palindrome (46264).

The spelling of 345642808 in words is "three hundred forty-five million, six hundred forty-two thousand, eight hundred eight".