2106620330 has 16 divisors (see below), whose sum is σ = 3803884200. Its totient is φ = 839988672.

The previous prime is 2106620281. The next prime is 2106620359. The reversal of 2106620330 is 330266012.

It can be written as a sum of positive squares in 4 ways, for example, as 1836379609 + 270240721 = 42853^2 + 16439^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2106620296 and 2106620305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329105 + ... + 335444.

Almost surely, 2^2106620330 is an apocalyptic number.

2106620330 is a deficient number, since it is larger than the sum of its proper divisors (1697263870).

2106620330 is a wasteful number, since it uses less digits than its factorization.

2106620330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664873.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 2106620330 is about 45897.9338314918. The cubic root of 2106620330 is about 1281.9234448783.

Adding to 2106620330 its reverse (330266012), we get a palindrome (2436886342).

The spelling of 2106620330 in words is "two billion, one hundred six million, six hundred twenty thousand, three hundred thirty".