It is a congruent number.
Almost surely, 21404212376 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 1404212376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2216471040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1404212376 is a wasteful number, since it uses less digits than its factorization.
1404212376 is an evil number, because the sum of its binary digits is even.
The square root of 1404212376 is about 37472.8218312953. The cubic root of 1404212376 is about 1119.8098040127.
The spelling of 1404212376 in words is "one billion, four hundred four million, two hundred twelve thousand, three hundred seventy-six".