104509620 has 72 divisors (see below), whose sum is σ = 327960360. Its totient is φ = 26906880.

The previous prime is 104509597. The next prime is 104509621. The reversal of 104509620 is 26905401.

It can be written as a sum of positive squares in 4 ways, for example, as 224676 + 104284944 = 474^2 + 10212^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104509621) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4791 + ... + 15230.

It is an arithmetic number, because the mean of its divisors is an integer number (4555005).

Almost surely, 2^104509620 is an apocalyptic number.

104509620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104509620 is an abundant number, since it is smaller than the sum of its proper divisors (223450740).

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

104509620 is a wasteful number, since it uses less digits than its factorization.

104509620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20065 (or 20060 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 104509620 is about 10222.9946688825. The cubic root of 104509620 is about 471.0338190925.

The spelling of 104509620 in words is "one hundred four million, five hundred nine thousand, six hundred twenty".