501393132 has 48 divisors (see below), whose sum is σ = 1341849600. Its totient is φ = 161738640.

The previous prime is 501393107. The next prime is 501393161. The reversal of 501393132 is 231393105.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 501393096 and 501393105.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 71532 + ... + 78227.

It is an arithmetic number, because the mean of its divisors is an integer number (27955200).

Almost surely, 2^501393132 is an apocalyptic number.

It is an amenable number.

501393132 is an abundant number, since it is smaller than the sum of its proper divisors (840456468).

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

501393132 is a wasteful number, since it uses less digits than its factorization.

501393132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149803 (or 149795 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 501393132 is about 22391.8094847201. The cubic root of 501393132 is about 794.4369954750.

Subtracting from 501393132 its sum of digits (27), we obtain a palindrome (501393105).

The spelling of 501393132 in words is "five hundred one million, three hundred ninety-three thousand, one hundred thirty-two".