100840648 has 32 divisors (see below), whose sum is σ = 202124160. Its totient is φ = 47048320.

The previous prime is 100840643. The next prime is 100840693. The reversal of 100840648 is 846048001.

It is a super-3 number, since 3×100840648³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (100840643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861 + ... + 14227.

It is an arithmetic number, because the mean of its divisors is an integer number (6316380).

Almost surely, 2^100840648 is an apocalyptic number.

It is an amenable number.

100840648 is an abundant number, since it is smaller than the sum of its proper divisors (101283512).

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

100840648 is a wasteful number, since it uses less digits than its factorization.

100840648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13437 (or 13433 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 100840648 is about 10041.9444332261. The cubic root of 100840648 is about 465.4559031221.

Adding to 100840648 its reverse (846048001), we get a palindrome (946888649).

The spelling of 100840648 in words is "one hundred million, eight hundred forty thousand, six hundred forty-eight".