4154445421 has 8 divisors (see below), whose sum is σ = 4748892800. Its totient is φ = 3560236848.

The previous prime is 4154445419. The next prime is 4154445457. The reversal of 4154445421 is 1245444514.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4154445421 - 2¹ = 4154445419 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 (4154445401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20721 + ... + 93478.

It is an arithmetic number, because the mean of its divisors is an integer number (593611600).

Almost surely, 2^4154445421 is an apocalyptic number.

It is an amenable number.

4154445421 is a deficient number, since it is larger than the sum of its proper divisors (594447379).

4154445421 is a wasteful number, since it uses less digits than its factorization.

4154445421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119403.

The product of its digits is 51200, while the sum is 34.

The square root of 4154445421 is about 64454.9875572093. The cubic root of 4154445421 is about 1607.5741692569.

Adding to 4154445421 its reverse (1245444514), we get a palindrome (5399889935).

The spelling of 4154445421 in words is "four billion, one hundred fifty-four million, four hundred forty-five thousand, four hundred twenty-one".