100388388 has 12 divisors (see below), whose sum is σ = 234239600. Its totient is φ = 33462792.

The previous prime is 100388347. The next prime is 100388389. The reversal of 100388388 is 883883001.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (100388389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4182838 + ... + 4182861.

Almost surely, 2^100388388 is an apocalyptic number.

It is an amenable number.

100388388 is an abundant number, since it is smaller than the sum of its proper divisors (133851212).

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

100388388 is a wasteful number, since it uses less digits than its factorization.

100388388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8365706 (or 8365704 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 100388388 is about 10019.4005808731. The cubic root of 100388388 is about 464.7590195462.

The spelling of 100388388 in words is "one hundred million, three hundred eighty-eight thousand, three hundred eighty-eight".