104240440287 has 6 divisors (see below), whose sum is σ = 150569524872. Its totient is φ = 69493626852.

The previous prime is 104240440279. The next prime is 104240440303. The reversal of 104240440287 is 782044042401.

104240440287 is a `hidden beast` number, since 1 + 0 + 4 + 240 + 4 + 402 + 8 + 7 = 666.

It is not a de Polignac number, because 104240440287 - 2³ = 104240440279 is a prime.

It is a super-2 number, since 2×104240440287² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104240440207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5791135563 + ... + 5791135580.

It is an arithmetic number, because the mean of its divisors is an integer number (25094920812).

Almost surely, 2^104240440287 is an apocalyptic number.

104240440287 is a deficient number, since it is larger than the sum of its proper divisors (46329084585).

104240440287 is a wasteful number, since it uses less digits than its factorization.

104240440287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11582271149 (or 11582271146 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 36.

Adding to 104240440287 its reverse (782044042401), we get a palindrome (886284482688).

The spelling of 104240440287 in words is "one hundred four billion, two hundred forty million, four hundred forty thousand, two hundred eighty-seven".