100840293 has 24 divisors (see below), whose sum is σ = 149572800. Its totient is φ = 65444544.

The previous prime is 100840283. The next prime is 100840307. The reversal of 100840293 is 392048001.

It is not a de Polignac number, because 100840293 - 2¹⁰ = 100839269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100840213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52728 + ... + 54606.

It is an arithmetic number, because the mean of its divisors is an integer number (6232200).

Almost surely, 2^100840293 is an apocalyptic number.

It is an amenable number.

100840293 is a deficient number, since it is larger than the sum of its proper divisors (48732507).

100840293 is a wasteful number, since it uses less digits than its factorization.

100840293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 100840293 is about 10041.9267573509. The cubic root of 100840293 is about 465.4553569236.

Adding to 100840293 its reverse (392048001), we get a palindrome (492888294).

The spelling of 100840293 in words is "one hundred million, eight hundred forty thousand, two hundred ninety-three".