402000204 is nontrivially palindromic in base 10.
It is a self number, because there is not a number n which added to its sum of digits gives 402000204.
It is an unprimeable number.
Almost surely, 2402000204 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 402000204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490215600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
402000204 is a wasteful number, since it uses less digits than its factorization.
402000204 is an odious number, because the sum of its binary digits is odd.
The square root of 402000204 is about 20049.9427430604. The cubic root of 402000204 is about 738.0323940511.
The spelling of 402000204 in words is "four hundred two million, two hundred four", and thus it is an aban number.