1882434221 has 2 divisors, whose sum is σ = 1882434222. Its totient is φ = 1882434220.

The previous prime is 1882434193. The next prime is 1882434317. The reversal of 1882434221 is 1224342881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1079845321 + 802588900 = 32861^2 + 28330^2 .

It is a cyclic number.

It is not a de Polignac number, because 1882434221 - 2¹⁰ = 1882433197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1882454221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 941217110 + 941217111.

It is an arithmetic number, because the mean of its divisors is an integer number (941217111).

Almost surely, 2^1882434221 is an apocalyptic number.

It is an amenable number.

1882434221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1882434221 is an equidigital number, since it uses as much as digits as its factorization.

1882434221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24576, while the sum is 35.

The square root of 1882434221 is about 43387.0282573029. The cubic root of 1882434221 is about 1234.7336093795.

The spelling of 1882434221 in words is "one billion, eight hundred eighty-two million, four hundred thirty-four thousand, two hundred twenty-one".