78371280 is a `hidden beast` number, since 7 + 8 + 371 + 280 = 666.
It is a congruent number.
It is an unprimeable number.
Almost surely, 278371280 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 78371280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145407360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78371280 is a wasteful number, since it uses less digits than its factorization.
78371280 is an evil number, because the sum of its binary digits is even.
The square root of 78371280 is about 8852.7555032317. The cubic root of 78371280 is about 427.9427238695.
The spelling of 78371280 in words is "seventy-eight million, three hundred seventy-one thousand, two hundred eighty".