345022320 has 80 divisors (see below), whose sum is σ = 1071493920. Its totient is φ = 91840512.

The previous prime is 345022319. The next prime is 345022331. The reversal of 345022320 is 23220543.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 193272 + ... + 195048.

It is an arithmetic number, because the mean of its divisors is an integer number (13393674).

Almost surely, 2^345022320 is an apocalyptic number.

345022320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345022320 is an abundant number, since it is smaller than the sum of its proper divisors (726471600).

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

345022320 is a wasteful number, since it uses less digits than its factorization.

345022320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602 (or 2596 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 345022320 is about 18574.7764454919. The cubic root of 345022320 is about 701.3730329596.

Adding to 345022320 its reverse (23220543), we get a palindrome (368242863).

The spelling of 345022320 in words is "three hundred forty-five million, twenty-two thousand, three hundred twenty".