393142 has 16 divisors (see below), whose sum is σ = 646272. Its totient is φ = 178560.

The previous prime is 393137. The next prime is 393143. The reversal of 393142 is 241393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393143) by changing a digit.

393142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868 + ... + 1240.

It is an arithmetic number, because the mean of its divisors is an integer number (40392).

2³⁹³¹⁴² is an apocalyptic number.

393142 is a deficient number, since it is larger than the sum of its proper divisors (253130).

393142 is a wasteful number, since it uses less digits than its factorization.

393142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423.

The product of its digits is 648, while the sum is 22.

The square root of 393142 is about 627.0103667405. The cubic root of 393142 is about 73.2571154856.

It can be divided in two parts, 393 and 142, that added together give a palindrome (535).

The spelling of 393142 in words is "three hundred ninety-three thousand, one hundred forty-two".