3630330421 has 4 divisors (see below), whose sum is σ = 3631734144. Its totient is φ = 3628926700.

The previous prime is 3630330409. The next prime is 3630330449. The reversal of 3630330421 is 1240330363.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1240330363 = 719 ⋅1725077.

It is a cyclic number.

It is not a de Polignac number, because 3630330421 - 2⁷ = 3630330293 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 (3630330401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697975 + ... + 703156.

It is an arithmetic number, because the mean of its divisors is an integer number (907933536).

Almost surely, 2^3630330421 is an apocalyptic number.

It is an amenable number.

3630330421 is a deficient number, since it is larger than the sum of its proper divisors (1403723).

3630330421 is a wasteful number, since it uses less digits than its factorization.

3630330421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403722.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 3630330421 is about 60252.2233697645. The cubic root of 3630330421 is about 1536.9109977421.

Adding to 3630330421 its reverse (1240330363), we get a palindrome (4870660784).

The spelling of 3630330421 in words is "three billion, six hundred thirty million, three hundred thirty thousand, four hundred twenty-one".