104685840 has 120 divisors (see below), whose sum is σ = 401813568. Its totient is φ = 23927040.

The previous prime is 104685829. The next prime is 104685851. The reversal of 104685840 is 48586401.

104685840 is a `hidden beast` number, since 10 + 4 + 68 + 584 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (104685829) and next prime (104685851).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 104685795 and 104685804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5346 + ... + 15425.

Almost surely, 2^104685840 is an apocalyptic number.

104685840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104685840 is an abundant number, since it is smaller than the sum of its proper divisors (297127728).

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

104685840 is a wasteful number, since it uses less digits than its factorization.

104685840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20797 (or 20788 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 104685840 is about 10231.6098440079. The cubic root of 104685840 is about 471.2984166471.

The spelling of 104685840 in words is "one hundred four million, six hundred eighty-five thousand, eight hundred forty".