104217642 has 12 divisors (see below), whose sum is σ = 225804930. Its totient is φ = 34739208.

The previous prime is 104217611. The next prime is 104217643. The reversal of 104217642 is 246712401.

104217642 is a `hidden beast` number, since 1 + 0 + 4 + 2 + 17 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 102030201 + 2187441 = 10101^2 + 1479^2 .

It is a super-2 number, since 2×104217642² = 21722633808080328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104217643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2894917 + ... + 2894952.

Almost surely, 2^104217642 is an apocalyptic number.

104217642 is an abundant number, since it is smaller than the sum of its proper divisors (121587288).

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

104217642 is a wasteful number, since it uses less digits than its factorization.

104217642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789877 (or 5789874 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 104217642 is about 10208.7042272759. The cubic root of 104217642 is about 470.5947533245.

The spelling of 104217642 in words is "one hundred four million, two hundred seventeen thousand, six hundred forty-two".