641580030 has 432 divisors, whose sum is σ = 2276636544. Its totient is φ = 124104960.

The previous prime is 641579993. The next prime is 641580031. The reversal of 641580030 is 30085146.

It is a junction number, because it is equal to n+sod(n) for n = 641579976 and 641580003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641580031) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 20696115 + ... + 20696145.

It is an arithmetic number, because the mean of its divisors is an integer number (5269992).

Almost surely, 2^641580030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 641580030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1138318272).

641580030 is an abundant number, since it is smaller than the sum of its proper divisors (1635056514).

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

641580030 is a wasteful number, since it uses less digits than its factorization.

641580030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 641580030 is about 25329.4301159738. The cubic root of 641580030 is about 862.4824747542.

The spelling of 641580030 in words is "six hundred forty-one million, five hundred eighty thousand, thirty".