104220240 has 80 divisors (see below), whose sum is σ = 324675648. Its totient is φ = 27655168.

The previous prime is 104220227. The next prime is 104220253. The reversal of 104220240 is 42022401.

It is an interprime number because it is at equal distance from previous prime (104220227) and next prime (104220253).

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 53524 + ... + 55436.

Almost surely, 2^104220240 is an apocalyptic number.

104220240 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 104220240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162337824).

104220240 is an abundant number, since it is smaller than the sum of its proper divisors (220455408).

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

104220240 is a wasteful number, since it uses less digits than its factorization.

104220240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 2150 counting only the distinct ones).

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

The square root of 104220240 is about 10208.8314708394. The cubic root of 104220240 is about 470.5986637150.

Adding to 104220240 its reverse (42022401), we get a palindrome (146242641).

The spelling of 104220240 in words is "one hundred four million, two hundred twenty thousand, two hundred forty".