393220 has 12 divisors (see below), whose sum is σ = 825804. Its totient is φ = 157280.

The previous prime is 393209. The next prime is 393241. The reversal of 393220 is 22393.

It can be written as a sum of positive squares in 2 ways, for example, as 179776 + 213444 = 424^2 + 462^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9811 + ... + 9850.

It is an arithmetic number, because the mean of its divisors is an integer number (68817).

2³⁹³²²⁰ is an apocalyptic number.

It is an amenable number.

393220 is an abundant number, since it is smaller than the sum of its proper divisors (432584).

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

393220 is a wasteful number, since it uses less digits than its factorization.

393220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19670 (or 19668 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 393220 is about 627.0725635842. The cubic root of 393220 is about 73.2619599415.

The spelling of 393220 in words is "three hundred ninety-three thousand, two hundred twenty".