345286320 has 80 divisors (see below), whose sum is σ = 1133364960. Its totient is φ = 86659072.

The previous prime is 345286313. The next prime is 345286343. The reversal of 345286320 is 23682543.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38235 + ... + 46394.

It is an arithmetic number, because the mean of its divisors is an integer number (14167062).

Almost surely, 2^345286320 is an apocalyptic number.

345286320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345286320 is an abundant number, since it is smaller than the sum of its proper divisors (788078640).

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

345286320 is a wasteful number, since it uses less digits than its factorization.

345286320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84662 (or 84656 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 345286320 is about 18581.8814978462. The cubic root of 345286320 is about 701.5518767263.

The spelling of 345286320 in words is "three hundred forty-five million, two hundred eighty-six thousand, three hundred twenty".