1941021 has 12 divisors (see below), whose sum is σ = 2951520. Its totient is φ = 1225800.
The previous prime is 1941013. The next prime is 1941031. The reversal of 1941021 is 1201491.
It is not a de Polignac number, because 1941021 - 23 = 1941013 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1940985 and 1941003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1941031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5505 + ... + 5846.
It is an arithmetic number, because the mean of its divisors is an integer number (245960).
21941021 is an apocalyptic number.
It is an amenable number.
1941021 is a deficient number, since it is larger than the sum of its proper divisors (1010499).
1941021 is a wasteful number, since it uses less digits than its factorization.
1941021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11376 (or 11373 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 18.
The square root of 1941021 is about 1393.2052971476. The cubic root of 1941021 is about 124.7412460742.
The spelling of 1941021 in words is "one million, nine hundred forty-one thousand, twenty-one".
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