3630454021 has 16 divisors (see below), whose sum is σ = 3858606720. Its totient is φ = 3408349120.

The previous prime is 3630454007. The next prime is 3630454103. The reversal of 3630454021 is 1204540363.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3630454021 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 (3630454721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047231 + ... + 1050691.

It is an arithmetic number, because the mean of its divisors is an integer number (241162920).

Almost surely, 2^3630454021 is an apocalyptic number.

It is an amenable number.

3630454021 is a deficient number, since it is larger than the sum of its proper divisors (228152699).

3630454021 is a wasteful number, since it uses less digits than its factorization.

3630454021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 3630454021 is about 60253.2490493251. The cubic root of 3630454021 is about 1536.9284396846.

Adding to 3630454021 its reverse (1204540363), we get a palindrome (4834994384).

The spelling of 3630454021 in words is "three billion, six hundred thirty million, four hundred fifty-four thousand, twenty-one".