4419029921 has 2 divisors, whose sum is σ = 4419029922. Its totient is φ = 4419029920.

The previous prime is 4419029863. The next prime is 4419029969. The reversal of 4419029921 is 1299209144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2324686225 + 2094343696 = 48215^2 + 45764^2 .

It is a cyclic number.

It is not a de Polignac number, because 4419029921 - 2¹⁰ = 4419028897 is a prime.

It is not a weakly prime, because it can be changed into another prime (4419029981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2209514960 + 2209514961.

It is an arithmetic number, because the mean of its divisors is an integer number (2209514961).

Almost surely, 2^4419029921 is an apocalyptic number.

It is an amenable number.

4419029921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4419029921 is an equidigital number, since it uses as much as digits as its factorization.

4419029921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 4419029921 is about 66475.7844707379. The cubic root of 4419029921 is about 1641.0015101532.

The spelling of 4419029921 in words is "four billion, four hundred nineteen million, twenty-nine thousand, nine hundred twenty-one".