102100444 has 24 divisors (see below), whose sum is σ = 183783600. Its totient is φ = 49610880.

The previous prime is 102100421. The next prime is 102100451. The reversal of 102100444 is 444001201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18574 + ... + 23434.

It is an arithmetic number, because the mean of its divisors is an integer number (7657650).

Almost surely, 2^102100444 is an apocalyptic number.

It is an amenable number.

102100444 is a deficient number, since it is larger than the sum of its proper divisors (81683156).

102100444 is a wasteful number, since it uses less digits than its factorization.

102100444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5013 (or 5011 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 102100444 is about 10104.4764337397. The cubic root of 102100444 is about 467.3861909472.

Adding to 102100444 its reverse (444001201), we get a palindrome (546101645).

The spelling of 102100444 in words is "one hundred two million, one hundred thousand, four hundred forty-four".