It is a congruent number.
It is an unprimeable number.
229904 is an apocalyptic number.
29904 is a gapful number since it is divisible by the number (24) 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 29904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
29904 is a wasteful number, since it uses less digits than its factorization.
29904 is an odious number, because the sum of its binary digits is odd.
The square root of 29904 is about 172.9277305697. The cubic root of 29904 is about 31.0391458298.
The spelling of 29904 in words is "twenty-nine thousand, nine hundred four".