3630402009 has 12 divisors (see below), whose sum is σ = 5647292196. Its totient is φ = 2234093472.

The previous prime is 3630401993. The next prime is 3630402011. The reversal of 3630402009 is 9002040363.

3630402009 is a `hidden beast` number, since 3 + 630 + 4 + 0 + 20 + 0 + 9 = 666.

3630402009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 158835609 + 3471566400 = 12603^2 + 58920^2 .

It is not a de Polignac number, because 3630402009 - 2⁴ = 3630401993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3630402049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15514422 + ... + 15514655.

It is an arithmetic number, because the mean of its divisors is an integer number (470607683).

Almost surely, 2^3630402009 is an apocalyptic number.

3630402009 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3630402009 is a deficient number, since it is larger than the sum of its proper divisors (2016890187).

3630402009 is a wasteful number, since it uses less digits than its factorization.

3630402009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31029096 (or 31029093 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 3630402009 is about 60252.8174361996. The cubic root of 3630402009 is about 1536.9211000054.

The spelling of 3630402009 in words is "three billion, six hundred thirty million, four hundred two thousand, nine".