641270130 has 64 divisors (see below), whose sum is σ = 1610696448. Its totient is φ = 163088640.

The previous prime is 641270089. The next prime is 641270131. The reversal of 641270130 is 31072146.

It is a super-2 number, since 2×641270130² = 822454759260433800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641270130.

It is not an unprimeable number, because it can be changed into a prime (641270131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272760 + ... + 275100.

It is an arithmetic number, because the mean of its divisors is an integer number (25167132).

Almost surely, 2^641270130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 641270130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805348224).

641270130 is an abundant number, since it is smaller than the sum of its proper divisors (969426318).

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

641270130 is a wasteful number, since it uses less digits than its factorization.

641270130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 641270130 is about 25323.3119871789. The cubic root of 641270130 is about 862.3435851624.

The spelling of 641270130 in words is "six hundred forty-one million, two hundred seventy thousand, one hundred thirty".