641130732 has 72 divisors (see below), whose sum is σ = 1784607552. Its totient is φ = 192453600.

The previous prime is 641130703. The next prime is 641130751. The reversal of 641130732 is 237031146.

641130732 is a `hidden beast` number, since 641 + 13 + 0 + 7 + 3 + 2 = 666.

641130732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×641130732² = 822097231029711648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641130696 and 641130705.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34807 + ... + 49937.

It is an arithmetic number, because the mean of its divisors is an integer number (24786216).

Almost surely, 2^641130732 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 641130732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (892303776).

641130732 is an abundant number, since it is smaller than the sum of its proper divisors (1143476820).

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

641130732 is a wasteful number, since it uses less digits than its factorization.

641130732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15259 (or 15254 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 641130732 is about 25320.5594724919. The cubic root of 641130732 is about 862.2810958011.

Adding to 641130732 its reverse (237031146), we get a palindrome (878161878).

The spelling of 641130732 in words is "six hundred forty-one million, one hundred thirty thousand, seven hundred thirty-two".