104240220 has 96 divisors (see below), whose sum is σ = 335129088. Its totient is φ = 23715072.

The previous prime is 104240207. The next prime is 104240221. The reversal of 104240220 is 22042401.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 104240220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104240221) 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 31 ways as a sum of consecutive naturals, for example, 118422 + ... + 119298.

It is an arithmetic number, because the mean of its divisors is an integer number (3490928).

Almost surely, 2^104240220 is an apocalyptic number.

104240220 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 104240220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167564544).

104240220 is an abundant number, since it is smaller than the sum of its proper divisors (230888868).

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

104240220 is a wasteful number, since it uses less digits than its factorization.

104240220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 104240220 is about 10209.8099884376. The cubic root of 104240220 is about 470.6287345231.

Adding to 104240220 its reverse (22042401), we get a palindrome (126282621).

The spelling of 104240220 in words is "one hundred four million, two hundred forty thousand, two hundred twenty".