345273320 has 64 divisors (see below), whose sum is σ = 934588800. Its totient is φ = 112147200.

The previous prime is 345273293. The next prime is 345273337. The reversal of 345273320 is 23372543.

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, 27131 + ... + 37770.

It is an arithmetic number, because the mean of its divisors is an integer number (14602950).

Almost surely, 2^345273320 is an apocalyptic number.

It is an amenable number.

345273320 is an abundant number, since it is smaller than the sum of its proper divisors (589315480).

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

345273320 is a wasteful number, since it uses less digits than its factorization.

345273320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64938 (or 64934 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 29.

The square root of 345273320 is about 18581.5316914403. The cubic root of 345273320 is about 701.5430721601.

The spelling of 345273320 in words is "three hundred forty-five million, two hundred seventy-three thousand, three hundred twenty".