641538296 has 16 divisors (see below), whose sum is σ = 1374725040. Its totient is φ = 274944960.

The previous prime is 641538283. The next prime is 641538323. The reversal of 641538296 is 692835146.

641538296 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 5727965 + ... + 5728076.

It is an arithmetic number, because the mean of its divisors is an integer number (85920315).

Almost surely, 2^641538296 is an apocalyptic number.

It is an amenable number.

641538296 is an abundant number, since it is smaller than the sum of its proper divisors (733186744).

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

641538296 is a wasteful number, since it uses less digits than its factorization.

641538296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11456054 (or 11456050 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 641538296 is about 25328.6062782775. The cubic root of 641538296 is about 862.4637732036.

The spelling of 641538296 in words is "six hundred forty-one million, five hundred thirty-eight thousand, two hundred ninety-six".