It is a happy number.
It is a tau number, because it is divible by the number of its divisors (56).
400960 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2400960 is an apocalyptic number.
400960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
400960 is the 299-th centered nonagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 400960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
400960 is a wasteful number, since it uses less digits than its factorization.
400960 is an odious number, because the sum of its binary digits is odd.
The square root of 400960 is about 633.2140238498. The cubic root of 400960 is about 73.7395273840.
Adding to 400960 its reverse (69004), we get a palindrome (469964).
The spelling of 400960 in words is "four hundred thousand, nine hundred sixty".