4029494221 has 2 divisors, whose sum is σ = 4029494222. Its totient is φ = 4029494220.

The previous prime is 4029494171. The next prime is 4029494243. The reversal of 4029494221 is 1224949204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3537275625 + 492218596 = 59475^2 + 22186^2 .

It is a cyclic number.

It is not a de Polignac number, because 4029494221 - 2¹³ = 4029486029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4029494251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2014747110 + 2014747111.

It is an arithmetic number, because the mean of its divisors is an integer number (2014747111).

Almost surely, 2^4029494221 is an apocalyptic number.

It is an amenable number.

4029494221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4029494221 is an equidigital number, since it uses as much as digits as its factorization.

4029494221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 4029494221 is about 63478.2972440188. The cubic root of 4029494221 is about 1591.2930979668.

The spelling of 4029494221 in words is "four billion, twenty-nine million, four hundred ninety-four thousand, two hundred twenty-one".