345195280 has 40 divisors (see below), whose sum is σ = 805823424. Its totient is φ = 137520000.

The previous prime is 345195239. The next prime is 345195299. The reversal of 345195280 is 82591543.

345195280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

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, 11485 + ... + 28675.

Almost surely, 2^345195280 is an apocalyptic number.

It is an amenable number.

345195280 is an abundant number, since it is smaller than the sum of its proper divisors (460628144).

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

345195280 is a wasteful number, since it uses less digits than its factorization.

345195280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17455 (or 17449 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 345195280 is about 18579.4316382391. The cubic root of 345195280 is about 701.4902130255.

It can be divided in two parts, 345 and 195280, that added together give a triangular number (195625 = T₆₂₅).

The spelling of 345195280 in words is "three hundred forty-five million, one hundred ninety-five thousand, two hundred eighty".