501430668 has 24 divisors (see below), whose sum is σ = 1192081968.
Its totient is φ = 163989696.
The previous prime is 501430621. The next prime is 501430669. The reversal of 501430668 is 866034105.
It is not an unprimeable number, because it can be changed into a prime (501430669) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393571 + ... + 394842.
It is an arithmetic number, because the mean of its divisors is an integer number (49670082).
Almost surely, 2501430668 is an apocalyptic number.
It is an amenable number.
501430668 is an abundant number, since it is smaller than the sum of its proper divisors (690651300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
501430668 is a wasteful number, since it uses less digits than its factorization.
501430668 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 788473 (or 788471 counting only the distinct ones).
The product of its (nonzero) digits is 17280, while the sum is 33.
The square root of 501430668 is about 22392.6476326494.
The cubic root of 501430668 is about 794.4568197347.
The spelling of 501430668 in words is "five hundred one million, four hundred thirty thousand, six hundred sixty-eight".