501642108 has 72 divisors (see below), whose sum is σ = 1396362240. Its totient is φ = 150579360.

The previous prime is 501642073. The next prime is 501642149. The reversal of 501642108 is 801246105.

501642108 is a `hidden beast` number, since 5 + 0 + 1 + 642 + 10 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36453 + ... + 48291.

It is an arithmetic number, because the mean of its divisors is an integer number (19393920).

Almost surely, 2^501642108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501642108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698181120).

501642108 is an abundant number, since it is smaller than the sum of its proper divisors (894720132).

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

501642108 is a wasteful number, since it uses less digits than its factorization.

501642108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11967 (or 11962 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 501642108 is about 22397.3683275513. The cubic root of 501642108 is about 794.5684711588.

The spelling of 501642108 in words is "five hundred one million, six hundred forty-two thousand, one hundred eight".