345284 has 12 divisors (see below), whose sum is σ = 620844. Its totient is φ = 167904.

The previous prime is 345271. The next prime is 345307. The reversal of 345284 is 482543.

It can be written as a sum of positive squares in 2 ways, for example, as 222784 + 122500 = 472^2 + 350^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019 + ... + 1314.

It is an arithmetic number, because the mean of its divisors is an integer number (51737).

2³⁴⁵²⁸⁴ is an apocalyptic number.

It is an amenable number.

345284 is a deficient number, since it is larger than the sum of its proper divisors (275560).

345284 is a wasteful number, since it uses less digits than its factorization.

345284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374 (or 2372 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 345284 is about 587.6087133459. The cubic root of 345284 is about 70.1550305466.

The spelling of 345284 in words is "three hundred forty-five thousand, two hundred eighty-four".