381366972 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (36).
381366972 is strictly pandigital in base 9.
It is a congruent number.
Almost surely, 2381366972 is an apocalyptic number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
381366972 is a wasteful number, since it uses less digits than its factorization.
381366972 is an odious number, because the sum of its binary digits is odd.
The square root of 381366972 is about 19528.6193060339. The cubic root of 381366972 is about 725.1831305914.
The spelling of 381366972 in words is "three hundred eighty-one million, three hundred sixty-six thousand, nine hundred seventy-two".