393340 has 24 divisors (see below), whose sum is σ = 840672. Its totient is φ = 154560.

The previous prime is 393331. The next prime is 393361. The reversal of 393340 is 43393.

It is a zygodrome in base 2.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1282 + ... + 1558.

It is an arithmetic number, because the mean of its divisors is an integer number (35028).

2³⁹³³⁴⁰ is an apocalyptic number.

It is an amenable number.

393340 is an abundant number, since it is smaller than the sum of its proper divisors (447332).

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

393340 is a wasteful number, since it uses less digits than its factorization.

393340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 393340 is about 627.1682389917. The cubic root of 393340 is about 73.2694116996.

The spelling of 393340 in words is "three hundred ninety-three thousand, three hundred forty".