641450504 has 16 divisors (see below), whose sum is σ = 1210382700. Its totient is φ = 318681792.

The previous prime is 641450461. The next prime is 641450521. The reversal of 641450504 is 405054146.

It can be written as a sum of positive squares in 2 ways, for example, as 628504900 + 12945604 = 25070^2 + 3598^2 .

It is a super-2 number, since 2×641450504² = 822917498163708032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254099 + ... + 256610.

Almost surely, 2^641450504 is an apocalyptic number.

It is an amenable number.

641450504 is a deficient number, since it is larger than the sum of its proper divisors (568932196).

641450504 is a wasteful number, since it uses less digits than its factorization.

641450504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510872 (or 510868 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 641450504 is about 25326.8731587616. The cubic root of 641450504 is about 862.4244298138.

The spelling of 641450504 in words is "six hundred forty-one million, four hundred fifty thousand, five hundred four".