345555320 has 32 divisors (see below), whose sum is σ = 848182320. Its totient is φ = 125656320.

The previous prime is 345555317. The next prime is 345555349. The reversal of 345555320 is 23555543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392237 + ... + 393116.

Almost surely, 2^345555320 is an apocalyptic number.

It is an amenable number.

345555320 is an abundant number, since it is smaller than the sum of its proper divisors (502627000).

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

345555320 is a wasteful number, since it uses less digits than its factorization.

345555320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785375 (or 785371 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 32.

The square root of 345555320 is about 18589.1183222874. The cubic root of 345555320 is about 701.7340139435.

The spelling of 345555320 in words is "three hundred forty-five million, five hundred fifty-five thousand, three hundred twenty".