345728384 has 32 divisors (see below), whose sum is σ = 689601600. Its totient is φ = 172652032.

The previous prime is 345728363. The next prime is 345728423. The reversal of 345728384 is 483827543.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183254 + ... + 185130.

It is an arithmetic number, because the mean of its divisors is an integer number (21550050).

Almost surely, 2^345728384 is an apocalyptic number.

It is an amenable number.

345728384 is a deficient number, since it is larger than the sum of its proper divisors (343873216).

345728384 is a wasteful number, since it uses less digits than its factorization.

345728384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330 (or 3318 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 345728384 is about 18593.7727209945. The cubic root of 345728384 is about 701.8511438883.

The spelling of 345728384 in words is "three hundred forty-five million, seven hundred twenty-eight thousand, three hundred eighty-four".