104320453440 has 224 divisors, whose sum is σ = 378730727424. Its totient is φ = 23832299520.

The previous prime is 104320453417. The next prime is 104320453441. The reversal of 104320453440 is 44354023401.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 104320453398 and 104320453407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104320453441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21414205 + ... + 21419075.

It is an arithmetic number, because the mean of its divisors is an integer number (1690762176).

Almost surely, 2^104320453440 is an apocalyptic number.

104320453440 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 104320453440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189365363712).

104320453440 is an abundant number, since it is smaller than the sum of its proper divisors (274410273984).

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

104320453440 is a wasteful number, since it uses less digits than its factorization.

104320453440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8085 (or 8075 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 104320453440 its reverse (44354023401), we get a palindrome (148674476841).

The spelling of 104320453440 in words is "one hundred four billion, three hundred twenty million, four hundred fifty-three thousand, four hundred forty".