100684044 has 18 divisors (see below), whose sum is σ = 254506980. Its totient is φ = 33561336.

The previous prime is 100684043. The next prime is 100684079. The reversal of 100684044 is 440486001.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 100683999 and 100684017.

It is not an unprimeable number, because it can be changed into a prime (100684043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1398354 + ... + 1398425.

Almost surely, 2^100684044 is an apocalyptic number.

It is an amenable number.

100684044 is an abundant number, since it is smaller than the sum of its proper divisors (153822936).

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

100684044 is a wasteful number, since it uses less digits than its factorization.

100684044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796789 (or 2796784 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 100684044 is about 10034.1439096716. The cubic root of 100684044 is about 465.2148296271.

The spelling of 100684044 in words is "one hundred million, six hundred eighty-four thousand, forty-four".