392238 has 48 divisors (see below), whose sum is σ = 1063296. Its totient is φ = 101520.

The previous prime is 392233. The next prime is 392239. The reversal of 392238 is 832293.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1245 + ... + 1527.

It is an arithmetic number, because the mean of its divisors is an integer number (22152).

2³⁹²²³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 392238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531648).

392238 is an abundant number, since it is smaller than the sum of its proper divisors (671058).

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

392238 is a wasteful number, since it uses less digits than its factorization.

392238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 306 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 392238 is about 626.2890706375. The cubic root of 392238 is about 73.2009226794.

It can be divided in two parts, 392 and 238, that added together give a triangular number (630 = T₃₅).

The spelling of 392238 in words is "three hundred ninety-two thousand, two hundred thirty-eight".