4334445421 has 16 divisors (see below), whose sum is σ = 4562127360. Its totient is φ = 4113665920.

The previous prime is 4334445419. The next prime is 4334445449. The reversal of 4334445421 is 1245444334.

It is a cyclic number.

It is not a de Polignac number, because 4334445421 - 2¹ = 4334445419 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 (4334445461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315075 + ... + 328543.

It is an arithmetic number, because the mean of its divisors is an integer number (285132960).

Almost surely, 2^4334445421 is an apocalyptic number.

4334445421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4334445421 is a deficient number, since it is larger than the sum of its proper divisors (227681939).

4334445421 is a wasteful number, since it uses less digits than its factorization.

4334445421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13724.

The product of its digits is 92160, while the sum is 34.

The square root of 4334445421 is about 65836.5052307608. The cubic root of 4334445421 is about 1630.4638700105.

Adding to 4334445421 its reverse (1245444334), we get a palindrome (5579889755).

The spelling of 4334445421 in words is "four billion, three hundred thirty-four million, four hundred forty-five thousand, four hundred twenty-one".