393290 has 16 divisors (see below), whose sum is σ = 719712. Its totient is φ = 154704.

The previous prime is 393287. The next prime is 393299. The reversal of 393290 is 92393.

It is not an unprimeable number, because it can be changed into a prime (393299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377 + ... + 963.

It is an arithmetic number, because the mean of its divisors is an integer number (44982).

2³⁹³²⁹⁰ is an apocalyptic number.

393290 is a deficient number, since it is larger than the sum of its proper divisors (326422).

393290 is a wasteful number, since it uses less digits than its factorization.

393290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 393290 is about 627.1283760124. The cubic root of 393290 is about 73.2663069846.

The spelling of 393290 in words is "three hundred ninety-three thousand, two hundred ninety".