2121382 has 16 divisors (see below), whose sum is σ = 3359232. Its totient is φ = 1002760.

The previous prime is 2121377. The next prime is 2121389. The reversal of 2121382 is 2831212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4707 + ... + 5137.

It is an arithmetic number, because the mean of its divisors is an integer number (209952).

2^2121382 is an apocalyptic number.

2121382 is a deficient number, since it is larger than the sum of its proper divisors (1237850).

2121382 is a wasteful number, since it uses less digits than its factorization.

2121382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563.

The product of its digits is 192, while the sum is 19.

The square root of 2121382 is about 1456.4964812865. The cubic root of 2121382 is about 128.4910741881.

Adding to 2121382 its reverse (2831212), we get a palindrome (4952594).

The spelling of 2121382 in words is "two million, one hundred twenty-one thousand, three hundred eighty-two".