4054421091 has 16 divisors (see below), whose sum is σ = 6185942784. Its totient is φ = 2313895584.

The previous prime is 4054421089. The next prime is 4054421093. The reversal of 4054421091 is 1901244504.

It is an interprime number because it is at equal distance from previous prime (4054421089) and next prime (4054421093).

It is not a de Polignac number, because 4054421091 - 2¹ = 4054421089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4054421093) 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 15 ways as a sum of consecutive naturals, for example, 104385 + ... + 137858.

It is an arithmetic number, because the mean of its divisors is an integer number (386621424).

Almost surely, 2^4054421091 is an apocalyptic number.

4054421091 is a deficient number, since it is larger than the sum of its proper divisors (2131521693).

4054421091 is a wasteful number, since it uses less digits than its factorization.

4054421091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243050.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 4054421091 is about 63674.3362038428. The cubic root of 4054421091 is about 1594.5676564583.

Adding to 4054421091 its reverse (1901244504), we get a palindrome (5955665595).

The spelling of 4054421091 in words is "four billion, fifty-four million, four hundred twenty-one thousand, ninety-one".