104445820 has 96 divisors (see below), whose sum is σ = 242081280. Its totient is φ = 37739520.

The previous prime is 104445767. The next prime is 104445827. The reversal of 104445820 is 28544401.

104445820 = T₄₆₄ + T₄₆₅ + ... + T₈₉₈.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104445827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 665182 + ... + 665338.

It is an arithmetic number, because the mean of its divisors is an integer number (2521680).

Almost surely, 2^104445820 is an apocalyptic number.

104445820 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 104445820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121040640).

104445820 is an abundant number, since it is smaller than the sum of its proper divisors (137635460).

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

104445820 is a wasteful number, since it uses less digits than its factorization.

104445820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 104445820 is about 10219.8737761285. The cubic root of 104445820 is about 470.9379488909.

It can be divided in two parts, 1044 and 45820, that added together give a palindrome (46864).

The spelling of 104445820 in words is "one hundred four million, four hundred forty-five thousand, eight hundred twenty".