104520240 has 320 divisors, whose sum is σ = 404974080. Its totient is φ = 24560640.

The previous prime is 104520223. The next prime is 104520253. The reversal of 104520240 is 42025401.

104520240 is a `hidden beast` number, since 104 + 520 + 2 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1259239 + ... + 1259321.

It is an arithmetic number, because the mean of its divisors is an integer number (1265544).

Almost surely, 2^104520240 is an apocalyptic number.

104520240 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 104520240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202487040).

104520240 is an abundant number, since it is smaller than the sum of its proper divisors (300453840).

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

104520240 is a wasteful number, since it uses less digits than its factorization.

104520240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 104520240 is about 10223.5140729595. The cubic root of 104520240 is about 471.0497736356.

Adding to 104520240 its reverse (42025401), we get a palindrome (146545641).

The spelling of 104520240 in words is "one hundred four million, five hundred twenty thousand, two hundred forty".