2100442330 has 24 divisors (see below), whose sum is σ = 4398070068. Its totient is φ = 720151488.

The previous prime is 2100442319. The next prime is 2100442339. The reversal of 2100442330 is 332440012.

It can be written as a sum of positive squares in 2 ways, for example, as 1895122089 + 205320241 = 43533^2 + 14329^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2100442298 and 2100442307.

It is not an unprimeable number, because it can be changed into a prime (2100442339) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2142819 + ... + 2143798.

Almost surely, 2^2100442330 is an apocalyptic number.

2100442330 is an abundant number, since it is smaller than the sum of its proper divisors (2297627738).

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

2100442330 is a wasteful number, since it uses less digits than its factorization.

2100442330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286638 (or 4286631 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2100442330 is about 45830.5829114141. The cubic root of 2100442330 is about 1280.6690695615.

Adding to 2100442330 its reverse (332440012), we get a palindrome (2432882342).

The spelling of 2100442330 in words is "two billion, one hundred million, four hundred forty-two thousand, three hundred thirty".