104451840 has 108 divisors (see below), whose sum is σ = 361432344. Its totient is φ = 27850752.

The previous prime is 104451833. The next prime is 104451847. The reversal of 104451840 is 48154401.

It is a happy number.

104451840 is a `hidden beast` number, since 104 + 4 + 518 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (104451833) and next prime (104451847).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104451847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6987 + ... + 16053.

Almost surely, 2^104451840 is an apocalyptic number.

104451840 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 104451840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180716172).

104451840 is an abundant number, since it is smaller than the sum of its proper divisors (256980504).

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

104451840 is an equidigital number, since it uses as much as digits as its factorization.

104451840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9094 (or 9077 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 104451840 is about 10220.1682960703. The cubic root of 104451840 is about 470.9469966185.

The spelling of 104451840 in words is "one hundred four million, four hundred fifty-one thousand, eight hundred forty".