It is a tau number, because it is divible by the number of its divisors (240).
21375920 is an apocalyptic number.
1375920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1375920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2968560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1375920 is a wasteful number, since it uses less digits than its factorization.
1375920 is an evil number, because the sum of its binary digits is even.
The square root of 1375920 is about 1172.9961636766. The cubic root of 1375920 is about 111.2237997469.
The spelling of 1375920 in words is "one million, three hundred seventy-five thousand, nine hundred twenty".