104861840 has 40 divisors (see below), whose sum is σ = 251674368. Its totient is φ = 40590720.

The previous prime is 104861839. The next prime is 104861843. The reversal of 104861840 is 48168401.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 104861797 and 104861806.

It is not an unprimeable number, because it can be changed into a prime (104861843) 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, 18662 + ... + 23621.

Almost surely, 2^104861840 is an apocalyptic number.

104861840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104861840 is an abundant number, since it is smaller than the sum of its proper divisors (146812528).

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

104861840 is a wasteful number, since it uses less digits than its factorization.

104861840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42327 (or 42321 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 104861840 is about 10240.2070291572. The cubic root of 104861840 is about 471.5623876540.

The spelling of 104861840 in words is "one hundred four million, eight hundred sixty-one thousand, eight hundred forty".