100444988 has 12 divisors (see below), whose sum is σ = 200890032. Its totient is φ = 43047840.

The previous prime is 100444987. The next prime is 100444997. The reversal of 100444988 is 889444001.

100444988 is an admirable number.

It is a super-2 number, since 2×100444988² = 20178391228640288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100444987) 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 3 ways as a sum of consecutive naturals, for example, 1793633 + ... + 1793688.

It is an arithmetic number, because the mean of its divisors is an integer number (16740836).

Almost surely, 2^100444988 is an apocalyptic number.

It is an amenable number.

100444988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

100444988 is a wasteful number, since it uses less digits than its factorization.

100444988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3587332 (or 3587330 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 100444988 is about 10022.2247031285. The cubic root of 100444988 is about 464.8463484323.

Adding to 100444988 its reverse (889444001), we get a palindrome (989888989).

The spelling of 100444988 in words is "one hundred million, four hundred forty-four thousand, nine hundred eighty-eight".