3821120 has 28 divisors (see below), whose sum is σ = 9099804. Its totient is φ = 1528320.

The previous prime is 3821119. The next prime is 3821123. The reversal of 3821120 is 211283.

It can be written as a sum of positive squares in 2 ways, for example, as 1183744 + 2637376 = 1088^2 + 1624^2 .

It is not an unprimeable number, because it can be changed into a prime (3821123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5651 + ... + 6290.

It is an arithmetic number, because the mean of its divisors is an integer number (324993).

Almost surely, 2^3821120 is an apocalyptic number.

It is an amenable number.

3821120 is an abundant number, since it is smaller than the sum of its proper divisors (5278684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3821120 is a wasteful number, since it uses less digits than its factorization.

3821120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11958 (or 11948 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 3821120 is about 1954.7685284964. The cubic root of 3821120 is about 156.3376425643.

The spelling of 3821120 in words is "three million, eight hundred twenty-one thousand, one hundred twenty".