2100102444 has 48 divisors (see below), whose sum is σ = 5939687040. Its totient is φ = 636394320.

The previous prime is 2100102443. The next prime is 2100102467. The reversal of 2100102444 is 4442010012.

2100102444 is a `hidden beast` number, since 210 + 0 + 10 + 2 + 444 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2100102443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882694 + ... + 885069.

It is an arithmetic number, because the mean of its divisors is an integer number (123743480).

Almost surely, 2^2100102444 is an apocalyptic number.

It is an amenable number.

2100102444 is an abundant number, since it is smaller than the sum of its proper divisors (3839584596).

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

2100102444 is a wasteful number, since it uses less digits than its factorization.

2100102444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767787 (or 1767779 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2100102444 is about 45826.8746916043. The cubic root of 2100102444 is about 1280.5999880857.

Adding to 2100102444 its reverse (4442010012), we get a palindrome (6542112456).

The spelling of 2100102444 in words is "two billion, one hundred million, one hundred two thousand, four hundred forty-four".