641408676 has 24 divisors (see below), whose sum is σ = 1497523104. Its totient is φ = 213673920.

The previous prime is 641408629. The next prime is 641408699. The reversal of 641408676 is 676804146.

641408676 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 2×641408676² = 822810179296145952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5791 + ... + 36281.

It is an arithmetic number, because the mean of its divisors is an integer number (62396796).

Almost surely, 2^641408676 is an apocalyptic number.

It is an amenable number.

641408676 is an abundant number, since it is smaller than the sum of its proper divisors (856114428).

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

641408676 is a wasteful number, since it uses less digits than its factorization.

641408676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32251 (or 32249 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 641408676 is about 25326.0473820926. The cubic root of 641408676 is about 862.4056836165.

The spelling of 641408676 in words is "six hundred forty-one million, four hundred eight thousand, six hundred seventy-six".