392438 has 8 divisors (see below), whose sum is σ = 591840. Its totient is φ = 195160.

The previous prime is 392437. The next prime is 392443. The reversal of 392438 is 834293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 392438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68 + ... + 888.

It is an arithmetic number, because the mean of its divisors is an integer number (73980).

2³⁹²⁴³⁸ is an apocalyptic number.

392438 is a deficient number, since it is larger than the sum of its proper divisors (199402).

392438 is a wasteful number, since it uses less digits than its factorization.

392438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062.

The product of its digits is 5184, while the sum is 29.

The square root of 392438 is about 626.4487209661. The cubic root of 392438 is about 73.2133621481.

The spelling of 392438 in words is "three hundred ninety-two thousand, four hundred thirty-eight".