4421614421 has 6 divisors (see below), whose sum is σ = 5143510710. Its totient is φ = 3789955176.

The previous prime is 4421614409. The next prime is 4421614423. The reversal of 4421614421 is 1244161244.

It can be written as a sum of positive squares in only one way, i.e., 4084488100 + 337126321 = 63910^2 + 18361^2 .

It is not a de Polignac number, because 4421614421 - 2³⁰ = 3347872597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421614423) 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 in 5 ways as a sum of consecutive naturals, for example, 45118466 + ... + 45118563.

It is an arithmetic number, because the mean of its divisors is an integer number (857251785).

Almost surely, 2^4421614421 is an apocalyptic number.

It is an amenable number.

4421614421 is a deficient number, since it is larger than the sum of its proper divisors (721896289).

4421614421 is an equidigital number, since it uses as much as digits as its factorization.

4421614421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90237043 (or 90237036 counting only the distinct ones).

The product of its digits is 6144, while the sum is 29.

The square root of 4421614421 is about 66495.2210388085. The cubic root of 4421614421 is about 1641.3213648062.

Adding to 4421614421 its reverse (1244161244), we get a palindrome (5665775665).

The spelling of 4421614421 in words is "four billion, four hundred twenty-one million, six hundred fourteen thousand, four hundred twenty-one".