3261630330 has 192 divisors, whose sum is σ = 10071060480. Its totient is φ = 716902272.

The previous prime is 3261630313. The next prime is 3261630331. The reversal of 3261630330 is 330361623.

3261630330 is a `hidden beast` number, since 3 + 26 + 1 + 630 + 3 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 3261630294 and 3261630303.

It is not an unprimeable number, because it can be changed into a prime (3261630331) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1746057 + ... + 1747923.

It is an arithmetic number, because the mean of its divisors is an integer number (52453440).

Almost surely, 2^3261630330 is an apocalyptic number.

3261630330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3261630330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5035530240).

3261630330 is an abundant number, since it is smaller than the sum of its proper divisors (6809430150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3261630330 is a wasteful number, since it uses less digits than its factorization.

3261630330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 3261630330 is about 57110.6849022142. The cubic root of 3261630330 is about 1483.0128438882.

Adding to 3261630330 its reverse (330361623), we get a palindrome (3591991953).

The spelling of 3261630330 in words is "three billion, two hundred sixty-one million, six hundred thirty thousand, three hundred thirty".