641441050 has 12 divisors (see below), whose sum is σ = 1193080446. Its totient is φ = 256576400.

The previous prime is 641441041. The next prime is 641441063. The reversal of 641441050 is 50144146.

It can be written as a sum of positive squares in 3 ways, for example, as 412130601 + 229310449 = 20301^2 + 15143^2 .

It is a super-2 number, since 2×641441050² = 822893241250205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6414361 + ... + 6414460.

Almost surely, 2^641441050 is an apocalyptic number.

641441050 is a deficient number, since it is larger than the sum of its proper divisors (551639396).

641441050 is a wasteful number, since it uses less digits than its factorization.

641441050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12828833 (or 12828828 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 641441050 is about 25326.6865183743. The cubic root of 641441050 is about 862.4201928537.

Adding to 641441050 its reverse (50144146), we get a palindrome (691585196).

The spelling of 641441050 in words is "six hundred forty-one million, four hundred forty-one thousand, fifty".