4132432021 has 2 divisors, whose sum is σ = 4132432022. Its totient is φ = 4132432020.

The previous prime is 4132432009. The next prime is 4132432049. The reversal of 4132432021 is 1202342314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2674337796 + 1458094225 = 51714^2 + 38185^2 .

It is a cyclic number.

It is not a de Polignac number, because 4132432021 - 2²¹ = 4130334869 is a prime.

It is a super-2 number, since 2×4132432021² = 34153988816372288882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4132431983 and 4132432001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4132432001) 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, 2066216010 + 2066216011.

It is an arithmetic number, because the mean of its divisors is an integer number (2066216011).

Almost surely, 2^4132432021 is an apocalyptic number.

It is an amenable number.

4132432021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4132432021 is an equidigital number, since it uses as much as digits as its factorization.

4132432021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 4132432021 is about 64283.9950609792. The cubic root of 4132432021 is about 1604.7297573296.

Adding to 4132432021 its reverse (1202342314), we get a palindrome (5334774335).

The spelling of 4132432021 in words is "four billion, one hundred thirty-two million, four hundred thirty-two thousand, twenty-one".