4540104021 has 16 divisors (see below), whose sum is σ = 6318769536. Its totient is φ = 2894174976.

The previous prime is 4540104013. The next prime is 4540104029. The reversal of 4540104021 is 1204010454.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4540104013) and next prime (4540104029).

It is not a de Polignac number, because 4540104021 - 2³ = 4540104013 is a prime.

It is a super-2 number, since 2×4540104021² = 41225089043000736882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4540104029) 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, 238761 + ... + 257073.

It is an arithmetic number, because the mean of its divisors is an integer number (394923096).

Almost surely, 2^4540104021 is an apocalyptic number.

It is an amenable number.

4540104021 is a deficient number, since it is larger than the sum of its proper divisors (1778665515).

4540104021 is a wasteful number, since it uses less digits than its factorization.

4540104021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21932.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4540104021 is about 67380.2940109347. The cubic root of 4540104021 is about 1655.8535917933.

Adding to 4540104021 its reverse (1204010454), we get a palindrome (5744114475).

The spelling of 4540104021 in words is "four billion, five hundred forty million, one hundred four thousand, twenty-one".