392340 has 48 divisors (see below), whose sum is σ = 1185408. Its totient is φ = 96384.

The previous prime is 392339. The next prime is 392347. The reversal of 392340 is 43293.

392340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (24696).

2³⁹²³⁴⁰ is an apocalyptic number.

392340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 392340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592704).

392340 is an abundant number, since it is smaller than the sum of its proper divisors (793068).

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

392340 is a wasteful number, since it uses less digits than its factorization.

392340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 392340 is about 626.3704973895. The cubic root of 392340 is about 73.2072673366.

The spelling of 392340 in words is "three hundred ninety-two thousand, three hundred forty".