4054630021 has 8 divisors (see below), whose sum is σ = 4426341080. Its totient is φ = 3691464192.

The previous prime is 4054629977. The next prime is 4054630057. The reversal of 4054630021 is 1200364504.

It can be written as a sum of positive squares in 4 ways, for example, as 7761796 + 4046868225 = 2786^2 + 63615^2 .

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

It is not a de Polignac number, because 4054630021 - 2²⁹ = 3517759109 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 (4054630061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2135316 + ... + 2137213.

It is an arithmetic number, because the mean of its divisors is an integer number (553292635).

Almost surely, 2^4054630021 is an apocalyptic number.

It is an amenable number.

4054630021 is a deficient number, since it is larger than the sum of its proper divisors (371711059).

4054630021 is a wasteful number, since it uses less digits than its factorization.

4054630021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272615.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 4054630021 is about 63675.9767965910. The cubic root of 4054630021 is about 1594.5950460897.

Adding to 4054630021 its reverse (1200364504), we get a palindrome (5254994525).

The spelling of 4054630021 in words is "four billion, fifty-four million, six hundred thirty thousand, twenty-one".