501343668 has 120 divisors (see below), whose sum is σ = 1586071872. Its totient is φ = 134804736.

The previous prime is 501343663. The next prime is 501343669. The reversal of 501343668 is 866343105.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501343663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 32055 + ... + 45057.

Almost surely, 2^501343668 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 501343668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (793035936).

501343668 is an abundant number, since it is smaller than the sum of its proper divisors (1084728204).

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

501343668 is a wasteful number, since it uses less digits than its factorization.

501343668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13043 (or 13032 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 501343668 is about 22390.7049464728. The cubic root of 501343668 is about 794.4108700514.

The spelling of 501343668 in words is "five hundred one million, three hundred forty-three thousand, six hundred sixty-eight".