345569380 has 48 divisors (see below), whose sum is σ = 798174720. Its totient is φ = 124875648.

The previous prime is 345569351. The next prime is 345569437. The reversal of 345569380 is 83965543.

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, 1920 + ... + 26359.

It is an arithmetic number, because the mean of its divisors is an integer number (16628640).

Almost surely, 2^345569380 is an apocalyptic number.

It is an amenable number.

345569380 is an abundant number, since it is smaller than the sum of its proper divisors (452605340).

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

345569380 is a wasteful number, since it uses less digits than its factorization.

345569380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28348 (or 28346 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 345569380 is about 18589.4964966779. The cubic root of 345569380 is about 701.7435312295.

The spelling of 345569380 in words is "three hundred forty-five million, five hundred sixty-nine thousand, three hundred eighty".