104100040 has 64 divisors (see below), whose sum is σ = 258111360. Its totient is φ = 37470720.

The previous prime is 104100023. The next prime is 104100049. The reversal of 104100040 is 40001401.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (104100049) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 44172 + ... + 46468.

It is an arithmetic number, because the mean of its divisors is an integer number (4032990).

Almost surely, 2^104100040 is an apocalyptic number.

104100040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104100040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129055680).

104100040 is an abundant number, since it is smaller than the sum of its proper divisors (154011320).

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

104100040 is a wasteful number, since it uses less digits than its factorization.

104100040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422 (or 2418 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 104100040 is about 10202.9427127667. The cubic root of 104100040 is about 470.4176760947.

Adding to 104100040 its reverse (40001401), we get a palindrome (144101441).

The spelling of 104100040 in words is "one hundred four million, one hundred thousand, forty".