• 392 can be written using four 4's:
It is a happy number.
392 is nontrivially palindromic in base 13.
It is an ABA number since it can be written as A⋅BA, here for A=2, B=14.
It is a Duffinian number.
392 is an undulating number in base 13.
It is a plaindrome in base 12 and base 16.
It is a nialpdrome in base 7, base 8 and base 14.
It is a zygodrome in base 7.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 392
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
392 is a wasteful number, since it uses less digits than its factorization.
392 is an odious number, because the sum of its binary digits is odd.
The square root of 392 is about 19.7989898732. The cubic root of 392 is about 7.3186114200.
Adding to 392 its sum of digits (14), we get a triangular number (406 = T28).
Subtracting from 392 its sum of digits (14), we obtain a triangular number (378 = T27).
392 divided by its sum of digits (14) gives a triangular number (28 = T7).
Subtracting from 392 its reverse (293), we obtain a palindrome (99).
The spelling of 392 in words is "three hundred ninety-two", and thus it is an aban number.