501312642 has 8 divisors (see below), whose sum is σ = 1002625296. Its totient is φ = 167104212.

The previous prime is 501312631. The next prime is 501312649. The reversal of 501312642 is 246213105.

It is a sphenic number, since it is the product of 3 distinct primes.

501312642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (501312649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41776048 + ... + 41776059.

It is an arithmetic number, because the mean of its divisors is an integer number (125328162).

Almost surely, 2^501312642 is an apocalyptic number.

501312642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

501312642 is a wasteful number, since it uses less digits than its factorization.

501312642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83552112.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 501312642 is about 22390.0121036144. The cubic root of 501312642 is about 794.3944821578.

Adding to 501312642 its reverse (246213105), we get a palindrome (747525747).

The spelling of 501312642 in words is "five hundred one million, three hundred twelve thousand, six hundred forty-two".