2132440421 has 2 divisors, whose sum is σ = 2132440422. Its totient is φ = 2132440420.

The previous prime is 2132440417. The next prime is 2132440447. The reversal of 2132440421 is 1240442312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2072980900 + 59459521 = 45530^2 + 7711^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132440421 - 2² = 2132440417 is a prime.

It is a super-2 number, since 2×2132440421² = 9094604298229314482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2132440451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066220210 + 1066220211.

It is an arithmetic number, because the mean of its divisors is an integer number (1066220211).

Almost surely, 2^2132440421 is an apocalyptic number.

It is an amenable number.

2132440421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132440421 is an equidigital number, since it uses as much as digits as its factorization.

2132440421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2132440421 is about 46178.3544639694. The cubic root of 2132440421 is about 1287.1395507898.

Adding to 2132440421 its reverse (1240442312), we get a palindrome (3372882733).

The spelling of 2132440421 in words is "two billion, one hundred thirty-two million, four hundred forty thousand, four hundred twenty-one".